Managing Money

I keep telling myself that I'm going to save money, I'm going to put it away into my savings and not spend any. Obviously that hasn't been happening, and now I'm pretty much broke with no rain coat to start the school year at University of Oregon. I thought that I would have learned a lesson from the last time I had no money and could barely afford gas to drive myself to work, you know, to earn more money. But, alas, I get broken down once again at Target when I compulsively buy things like sheets, packs of diet coke, movies, books, a robe? New sweat pants? A sleep shirt to match the sweats and robe? I either need to stop spending my money IMMEDIATELY or a sugar daddy. Takers?