if i could earn enough maybe yes.
We will not earn enough to support living by doing bitcoin only. The bitcoin industry is too small at the moment. Maybe in 10 years.
I don't think so, I've seen a lot of users here sharing their story how they've managed to have a living with bitcoin. And it's definitely possible with lots of bitcoin earning opportunities online especially when you have a skill eg. on coding ,writing, designing, etc. Don't wait for 10 years man, you can start right now.