I would try to help you since I share many of your problems but since you're a woman and I'm a misogynist I don't feel like it. Perhaps your expectations are too high? Most jobs suck. Most relationships fail. If you were a man this would be a perfect time to have a mid-life crisis. I'm 35 and I've had two already but I'm precocious.
Sleeping too much is a sign of depression. Are you on meds? My best advice is that if you are and they aren't working stop taking them. Hit rock bottom then things can only go up. Discover cynicism, become the warm center of your own world of poo. Be the cup half empty. Realize that 1/3 of the people that you see tomorrow are in a similiar situation and that 75% of the people that you see either are, or will be in the same boat that you are. Visit despair.com, Read J.T.H.M., listen to angry music. Write really bad poetry.
Yay! Go team!