For me it was very fast, I started earning like 30$ daily and I quit the day job, but later I realized that it was a mistake to quit day job as it was really too early. I was struggling a lot because we all know that a tiny issue can lead you to 0$ days or even weeks, especially when you have little experience and knowledge in IM. But at the end everything was solved and I never come back to day job again.
But what is your story?
How soon people should leave day job?