i think it's good idea to full time on bitcoin, it's not diffirent with your real job, you can be progamer or open new startup, then you can withdraw your bitcoin and use the fiat. it's a normal nothing diffirent with your job.
i doubt that it is good to work full time on bitcoins because bitcoin price is impossible to predict so the income would be really fluctuating and you wouldnt be able to make good money
I think you should not hesitate to work in bitcoin due to the fact that many people have been plunged and working full time in bitcoin including my friend. he has benefited a lot from bitcoin. You do not need a lot of thinking since it will delay success. continue to live there must be a way out