it is not a good decision to quit job for BTC.If you are highly intersted in bitcoin then take few months and explore the market.
if you find that you can cope with the market and you are risk lover you can take a risk. but remember a thing, market is fluctuating. you can earn a lot or loose.
I think it is not a good decision to quit your job now.take your time because having a full-time job is more reliable and beneficial.
may the force be with you.