Late night musings

So I am unfortunately having a case of insomnia tonight. I fell asleep for about 90 minutes and then woke up again for some reason. I have spent the time watching the Olympics, watching Army wives and browsing Cool running, looking at my old times on the computer. Dont know if thats the best thing to do when I am tired, but I am also in a nolstagic mood. I think I am second guessing and understimating myself and my abilities. Like the other day, I did good with the 2 miles. But after half a mile I was already like I cant do this as I got to the first hill. I never used to be like that. I used to be the person who would try anything, and would accomplish anything she set her mind to. I need to get out of this mind set where I get convinced that I cant do something before I even try. Ok its now early am musings :) I need to figure out why I dont believe in myself and where all these negative thoughts are coming from. I am going to try and start today by when I run later tonight, not putting myself down before I run and just remembering that I am stronger then I think, at least I think I am.... This is going to take a while.