How can I be able to do the things that I really want to do?

I want to do so much! But I have no time to do it. I'm in college. I go to school full time. I also work part time (although I barely cut it as part time). But I want so much more. I want to sing. That is pretty uch the only thing that makes me completely happy. I also want to learn guitar and the ukulele. Making music makes me happy and I want time to do it more than anything. I'm not happy without it. I also need to work out. I know it sounds superficial but last year I got really sick and lost a lot of weight. I need to gain some muscle back. And I really want to learn Spanish. I have been doing duolingo a bit and it has helped a bit, but God forbid I have a busy few days. Plus, I feel as though it is really teaching me how to read in Spanish, not to speak it. What do I do?!