Leaving your job is a terrible idea. The ideal scenario is you have a job while doing your crypto taks like bounty, mining, and trading. Like me, I have my regular job and doing some bounty campaigns to add extra income for me. Crypto is a very volatile market and it is really hard to cope with in.
Due to the volatility of the cryptocurrencies, nothing is so certain, hence people only predict the future based from the data from the past. Losing your job in exchange for committing your money and your future into something that is uncertain is just so irrational.