The secret to a successful bitcoin investment is having a long-term vision, and being ready for volatility in the short term is crucial because it is quite risky to completely rely on cryptocurrency for survival.
Investment best practices include diversifying your portfolio and never risking more money than you can afford to lose.
Get a job, at the very least, or add another source of income. If you don't have extra cash to risk on a highly volatile asset, you can't just buy bitcoin. In addition, exercise discipline in all financial decisions, just as you would in any other area of the market for investments. And more importantly, improve your security and privacy to protect your hard earned money.
That is how you stay in the long run.
This is very important. Get a job while you wait for the value of your bitcoin investment to soar. You cannot simply cling to your bitcoin investment in the absence of employment. Being unemployed may cause you to sell your bitcoin for less than you should when you shouldn't. That has happened to me once.