I believe you. I read your whole post and I felt what you have gone through. I can understand how it feels when you say bitcoin investment is not easy for those who don't have a good source of income.
This is because when I started my journey with bitcoin I was as hungry for it as you were and tried to grab every opportunity to accumulate some coins.
Even I didn't have any income back then and so accumulating BTC was a tough task. As days passed the wallet balance kept growing.
I had sold some of my earnings in bitcoin on few occasions which I don't regret. It was a good journey for me fortunately.