This video of Timothy Gallwey teaching a woman how to play tennis. In 5 minutes.

The book is one of the best I've ever read (go get it now), it's about mental focus, improvement by not trying and about not judging your results.

I was sitting in front of a really difficult problem earlier today but I kept persisting at it even though at points I got frustrated ("I'm not sure I'm smart enough to do this...") I managed to stop thinking for a bit and try again without understanding the code fully and it ended up working. I'm not saying being intuitive always works with programming but sometimes if you feel out of your depth it can really help push you through.