Where Do I Go From Here?

I had such a desire to follow my dreams... my very unrealistic dreams. I'm very lost right now. I'm at this point where I should have accomplished something or have some path. I have no real goals or aspirations. Nursing school was a bust. I don't really know where to go from here. I'm making near minimum at a job with hardly any hours while my wife loses faith in me, I lose faith in myself, and I move forward aimlessly.
Music has been therapeutic. My grandfather gave me his gitjo and I keep playing. I keep moving forward aimlessly, and I keep playing. That's the best I can do right now.