My quarter life Crysis...

I'm currently in school and working. I have almost no time for friends, fun, or even time to work out and stay in shape. I don't know what I want to Major in, and I don't know why I go to class every day. My life so far has just been planned out from Pre-School to high school, I always knew what i was supposed to be doing. But what now? I always planned on going to collage, because that what my parents told me since forever. But while I'm there, I'm unmotivated, and for some reason I feel its just a waste of time and money.
I'm taking my general Ed. Classes.
But I'm not sure where I should/want to go after that.
It's kind of depressing.