When I was 24, entering the world of business and freelance work. I got a piece of advice from a crazy guy that has served me well my entire life:

NEVER say no to a job.

Think of the number you would be happy to do it for, and ask for it. No matter how ridiculous it sounds.

NEVER quit a job.

Think about how to change it to be the job you want. Whatever that might be.

More money. Time off. Focusing on what you like, eliminating what you don’t.

Demand those things. 

He said I’d astonished how often people say yes.

He was right.