If you are quitting your day job you should knwo for sure that you are going to make much money with teh bitcoin because if you are not making money with bitcoins you can better find a job.
yes that is right but if some one can give me guaranty that i can ake permanent profit from bitcoin then i am ready to quit my day job for bitcoin, but know that no one can give such surety to me because there no permanent income from bitcoin.
No one will promise you permanent income or profits in bitcoin, you income will depend on the efforts that you make in earning them, and if you are not confident then its better to continue with full time job.