My mom told me about this program she saw on T.V. (maybe you saw it, too?) where they were talking about the Law of Attraction.
The basic concept is that you take everything positively. You erase each and every negative thought or feeling and never, ever let it appear again. You refuse to accept failure and focus on what to do next and that you ARE going to do it, not how or why or "Nahh, I can't".
Erase can't from your vocabulary. Refuse to accept that you can't do something.
They offered examples like if you're out of a job, you keep on saying "I'm getting one tomorrow, I'll get one tomorrow" and you email yourself, (things are that bad) saying that you got a job. Or if you're not getting your grades up, you just assume that you're getting them soon, and work towards it. The point is that you don't get stuck at failure or when things are at a standstill. Stay positive, stay motivated. People called at the show and said that they tried this and it actually works.
In psychological terms, you're basically altering your mind-set to skip over obstacles and focus ahead, so that the goal that you're reaching towards won't be totally blocked just... delayed.
I'm not a very positive person myself. I know this theory sounds stupid, but what's the harm in trying? It can only make you better, right? Or maybe very retarded.
But anyway... let's try it. See if it works.