Fluid Mechanics will kill me!

I wish I knew what I was doing. I wish my teacher could teach or at least my book could explain how to do the problems. But neither of those is so ... I can be sure about that since I've now sat looking through bad notes, and my bad book for up to 3 hours trying to figure out how to do one fucking problem! One problem! I can't get the answer that is in the back, because I don't know how to do it. If I had someone to ask, I would, but I don't .... I have no one this quarter. And it makes switching schools look so much better. A fresh start, a chance to go else where. But why do that now, I am almost half done.