2. Invest what you can afford to lose.
3. Buy Bitcoin using DCA strategy e.g. every biweekly or every month.
I believe your Bitcoin investment will be successful by following the three steps I mentioned above, there's no need to use forecasting tools, accounting software bla bla bla.
Yes, I agree with you. Knowing all these three things you
listed can make anyone not to regret why they have invested in Bitcoin but that's not just it, investors of Bitcoin should learn about Bitcoin before they go ahead with their investment. Don't just follow others lead and invest in Bitcoin when you have not even read about Bitcoin. It will make the person not to know other important things about Bitcoin which will help to make their investment successful.