Being rich means different things to different people. Some people are never satisfied because they have the wrong mental attitude and are never satisfied no matter how much money they have. So they devote their entire life to gathering more and more money. Others can consider themselves rich with much less, so it is relative. What's the point if you spend your entire life working, if you have to maintain multiple sources of income, but you never enjoy your life. So being rich also means having enough time for yourself and your loved ones, and living quality emotional mental and spiritual life.
That being said, there is one sure way to never become rich, that is, you should never allow yourself to go into debt. Forget about loans and credit cards, that is, unless you have a business idea that requires some capital to realize it quickly.
Become rich person is relative based on how in their mind, maybe some one have about $300 every month look bigger earning and other person maybe $300 is small, we know not all people the same become richest person but if you can have many passive income you will be richest person, not only with bitcoin investment, you can try with other kind investment like invest with property, gold and you can invest your money in stock.