It's kind of like gambling with your lifestyle. You might get incredibly lucky and pick out some really good bounties, while others will simply be scams or unsuccessful projects. I would get at least a part time job and then consider spending the rest of the time doing bounties
Doing bounties is like gambling as you say. You may get lucky sometimes but most of the time you would end up in an ICO which scam. It might be too risky if you don't have a regular job and you have family that depends on you.