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.
Do not just simply rely investing in bitcoin alone since its never a guaranteed source of income. Always get a stable job, and just consider investing in bitcoin as a side hustle. Also, never invest more than you can afford to lose, or never go all in, as it can always lead to losses if you are not responsible taking the risk. And dont be greedy, but learn to be patient and wait for the perfect timing to reap what you sow in bitcoin investment.