Yes it is good if you don't have a job before joining crypto world but I will like to seek ideas from those that have reasonable jobs and I really want to know if you truly believe in Crypto so as to give away your job and fully dedicate full time to crypto or its not worth leaving everything because I see it as a long journey which I need to learn everyday.
You can still work on your regulary job and learn how does the crypto market work in the same time. When you will feel skilled enough, then you can try leave it.