If your income is not enough to meet your main needs or when your income allocation does not include reserve funds then investing is not very appropriate, as you mentioned there is a big chance that you will sell the investment at a loss because of urgent needs, before increasing investment capital then fulfill it first, first the main needs and have the right reserve funds and start investing, if the current income is not sufficient for this then look for additional work and then invest with the right knowledge.
You can do all this in parallel, the most important thing is to maintain the correct proportions and not try to invest more into Bitcoin than you can afford. I have always been stimulated by the idea that when I start earning more, I will be able to save more and this money will bring me income.
When I was young, I really liked the idea of compound interest and passive income. Even in my youth I knew that I didn’t want to work for someone and I understood what I needed to do for this, although it took me more time to implement than I thought, but I nevertheless, I managed to achieve this and it’s all thanks to planning and competent financial management.