You're going to go to school while working an 8 hours/day job? Is that really going to work? When are you going to practice?
I don't think we can reasonably give you career advice. That said, I would suggest the question you need to ask yourself is which choice is going to haunt you with regrets if you don't take it?In my experience, the things we regret most are the roads we didn't take. Our bad choices we survive.
I have always imagined that things would have been easier if I had been 2 different people: one who provides and the other who spends and enjoys what I really want. Unfortunately this cannot happen.