(Not enough Money) Am I in too much? (Overachiever???)?

the least disagreeable solution i could think of given what you have said about yourself, would be to use you hobbies and skills to earn money, that way in stead of paying for band clubs you will be profiting from them. also, quit the grocery store. if you need more money then get a better job. even with little experience (something that would not be true where you to get a job at say, a music(instrument) store)) and being only 15, there are still places that will pay more than minimum wage.