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This is an Epic of knowledge. I do not know how to start and where to start. It is only the Almighty God will bless you with this deposit of knowledge, encouragement and brotherly advise.
Start with one step at a time
(like Dorothy in the Wizard of Oz.. hahahaha.. I couldn't resist), which may well mean figuring out your budget.. .and figuring out a way to dedicate a certain amount of your cashflow to buying BTC no matter what.. and then you can kind of forget about that money that you had already put into BTC.. whether that ends up being $10 per week, or if you can ONLY accomplish $5 per week.
When I was younger I would just plot out my budget on paper (computers were not as common).. but then at some point in the 90s, I started using various computer programs and then I started to plot out my budget and my cashflow projection using an Excel spreadsheet, and I would plot out 6 months in advance, but with the passage of time and as my finances got more complex and I had more things going on, I found it better to plot out for 24 months rather than 6 months... and of course, the first 3-6 months of any projection are the most important to make sure that you have money to cover everything whether it is cashflow coming in and/or extra expected expenses... and if your cashflow is not very certain each month, then you might list the more certain amounts that you expect to come to you, and if extra ends up coming in for any particular period, then that would be a good problem to have and you would have extra to spend for that period... but I do tend to recommend to project conservatively because it is better to have extra cashflow coming in rather than extra expenses, even though your system should be able to deal with either direction and even to have a sufficient cushion (whether $500 or $1k or some other reasonable amount) that allows you to easily adapt to any small amount, and then if there is an emergency or something like that, then you may well have other funds that might be available somewhere else if you need to dip into those funds (which should not be your BTC.. unless you are going to die or something very severe).
Once you plot everything out, then you can see how much might be the bare minimum that you are going to be able to devote towards dollar cost average buying into BTC every week and you might also have a cushion amount in there, but don't feel stressed that you have to invest more into BTC at any given time (even if you have extra cashflow), so long as you at least meet your minimum weekly amounts that you have established for yourself, and of course, you can adjust your amounts and your overall projections from time to time to account for evolving circumstances including if your finances get better or worse, but hopefully, if you have decently strong beliefs about the long-term fundamentals of bitcoin, then you can just continue to invest small amounts on a regular basis and as the amounts of your BTC investment portfolio gets BIGGER (hopefully), you may well learn that you will need to take greater measures to protect those BTC and to set them aside (even if you only get to 0.1BTC over several years).. and you can learn many of the details of the matters about what you are going to do and how you are going to do them as you are investing into BTC over the years without having to feel that you have to learn everything right away.
Bitcoin can take a real long time to learn, and we have some people who have been in bitcoin for as long as me or longer
(I am about 8.5 years into bitcoin) and still seem to struggle with basic bitcoin knowledge because some of them don't establish solid attempts to focus on learning about BTC and getting their own systems solid in terms of just ongoingly accumulating BTC (even if just relatively small amounts).
Remember that there are a lot of folks who work all of their lives from the time that they are in their teens until they are in their 60s, 70s and sometimes even later in their lives, and many of them do not accumulate enough wealth to actually be comfortable and to have options, including the option to stop working and to live off of their investments. Some of them might actually have some success to achieve such after 30 years or more, and I am not even blaming any of those failures to achieve financial (pschological) independence for not being able to accomplish some of the investment successes because there are quite a few obstacles stacked against a lot of folks, even if they do most if not all of the right things in their lives (including but not limited to saving/investing money).
Seems to me that bitcoin is providing potential opportunities that might not have been so easily available to regular normies and even to poor people to be able to have access towards getting richie tools.. and of course, access to bitcoin does not guaranteed that you will get richie.. but you have better chances with bitcoin and also better chances if you attempt to be prudent, reasonable and maybe slightly aggressive without becoming so aggressive that you are either gambling or putting your principle at risk.. so in some sense, you need to always be attempting to guard and build your principle and if you engage in any kinds of gambling or risky actions, you are not putting large portions of your principle at risk... merely because you want to become richie faster or whatever.
Some folks want to cause you to believe that you can short-cut and get richie more quickly, and for sure it is better not to be trying to play those games, especially not with large portions of your principle.
With bitcoin, depending on your age, you may well have some abilities to achieve what had not really been easily achievable previously and also you may well be able to accomplish such in a shorter amount of time.. so instead of 30 years or more, maybe you will be able to do it a lot quicker, and even if you do not get to a point that you can quit your job really early (such as within 10 years or when you are relatively young), you still will have decent chances of improving your odds and also increasing your options... even with something like $10 per week into bitcoin.. and of course, if you can do more that would be helpful, but it would be worse if you are putting in too much that you are not keeping the rest of your life (finances and psychology) in order.
Once you establish your budget.. then you have to figure out where and how to source your bitcoins.. whether you can sign up for some kind of service that might be available in your country.. or whether you have to figure out some resources through meet ups, and hopefully there is some kind of way that you can get coins in your area.. I am not really sure about al of the possibilities, and surely sometimes there are fees involved that might motivate how you are making your purchases of BTC, so in that regard, you might have to pool your fiat and to buy less frequently and in larger amounts.. but even if you might have some trouble finding options in the beginning, you might learn of more options as you go and perhaps more options might come available to you with the passage of time.. maybe? maybe?
The beginning can be more difficult to get things set up, to get your systems into place, perhaps even the profitability of your BTC might not be very positive in the beginning, and then to keep learning along the way too, but the whole process should get easier and continue to build upon itself and you are likely to make various mistakes along the way too.. and for sure, you would want to strive to learn from your mistakes but sometimes, there is a need to also take action without necessarily trying to achieve perfection - because there has continued to be a certain amount of advantage in bitcoin in terms of getting all your systems set up and to get started. After you are started, then some changes and tweaks or even strategizing to buy on dips might become more clear, but in the beginning just establishing some regular buy amount is good.. and with the passage of time, you will be in a better position to even better identify what you believe to be a dip or not and whether you believe it is an actionable dip.. or if it just remains best to just continue to follow the regular system that you have established for yourself and you have determined (and hopefully tailored) for yourself and your situation (psychological and financial).