and you put this two out without talking about the security of your asset? investing without talking about the security of your asset is just like loading your house with lots and lots of money and letting it open or not being concerned that a third party infringing on your home can destroy all you have used the whole of your life in building.
Yea, you are very much correct on this, security of your asset is on of the most important thing an investor must look out for if he must be successful in his dealings as a Bitcoin investor, and the best way to do that is to buy and put your Bitcoin in a self custodian wallet like electrum where only only you have access to, and do not forget that your secret phase must be written down and save offline, in a private place where only you have access to.
they key one is the security of your asset while you can talk about other miscellaneous ones like setting up of your emergency fund, ensuring that your stream of income is regular and if possible, increasing on your earning and at some point, diversification and even taking some profit as a way of giving yourself a tap in the back, doing that will motivate you to stay invested for the long run. but at the end, bitcoin investment is not a do or die affair, if you are not the type that will be willing to stay disciplined to investing for the long run, regardless of the theoretical knowledge you have, getting the best from your investment might be hard.
As for the words I made bold in your statement, you really need to understand that in the world of cryptocurrency, their is no diversification because no other coin is as trustworthy as Bitcoin, any other coin aside Bitcoin is like a game where you are not that certain wether it might recover if it crashes in price, unlike Bitcoin that always rally back to even better height, so their is no diversification in cryptocurrency, unless you just want to take risk on alt and meme coin.
Then as for constantly taking profit from your holdings. If you are actually withdrawing from your holdings, does that still make you a Holder? Because you are actually selling for minimal gains when you should be looking for ways on how to accumulate more and increase your stash, that's a traits of traders not investors to be honest with you.