Do not ever depend on bitcoin because we do not know if this thing is lifetime. You should bitcoin as your alternative and find a job that fit to the things that you really want. I do not depend on bitcoin because there is no assurance that you can earn money so I have my permanent job.
Correct, we cannot depend our income in bitcoin because the price is very unstable sometimes you earn so much and sometimes you lose, that's why we need regular job to sustain our daily needs and have regular income.