Have another job in the bag that is solid before quitting. One that has people who will like you there from the get go, or one that will allow you to manage them.
Have a solid emergency fund before even thinking about it.
Know that you will be able to make the money to meet your needs consistently. Watch out for salaries based upon variable commissions or sales bonuses. Two months in and not making enough can be a real bummer.
Think it through, but if your are in a job you don't like and can change reasonably, do.
Yep, or as Dave says, “Don’t jump off the dock until the boat pulls up!”
My 17 y/o son just did this and shocked the heck out of our entire family. He quit he burger-flipping job and landed a decent job as a mechanic. He also quit his traditional high school and is finishing up with an online school. He should be starting college this fall.
He said that he didn’t see the point of wasting a year of his life in high school.
The thing that gave him the confidence is that he doesn’t have a family to support, he doesn’t pay rent, he doesn’t have a car payment... He’s free to do this.