I'm not sure about the whole "you're in control of your life" bit. Sure, on paper that's the case, but if you have some deep-rooted depression, no motivation, and no clear idea what you want to do with your life, then it can be VERY difficult to actually start doing something.

Unfortunately, most people go to college at an age where they really can't appreciate it. I don't mean that as a put down, I was in the same boat.

I think it will be a good idea to go for a real change of scene - go out there and work for a while. You'll probably hate it, but you will very quickly gain a perspective for what you want to do - or even more likely, for what you DON'T want to do. The trick is to not sever yourself from school so completely that by the time you want to go to grad school you have no connections at all.

Plus, being on your own and having a pile of bills to pay, when the only real way to do so means working a menial job that you hate for people that don't care about you with few prospects for improvement, will put things into perspective real quick.

I do think that if you go into grad school with your current attitude, you'll be wasting your time, and lots of money besides. But also there is a possibility that if you go into a grad school that demands a lot of work time, and surround yourself with people that are actually intelligent and interesting, with professors that are motivated to teach and students that are motivated to learn, maybe you'll pick up enthusiasm for something.

Lastly, there's no faster path to mediocrity in life than waiting for inspiration. If you can't figure out what you want to do, just do something. If you don't like it, do something else. But hard as it may be, don't just sit there. And if all you want to do is sit there, then put yourself into a position where that's not an option. Which will be a hard step and will take a ton of guts, but will make you a better person in the end.