
I'm having trouble with career stuff myself. As Matt said, I just try and persist at it. Also, working on not beating myself up. The mental game is key. I learned some things reading about meditation that have helped a lot. Mainly what I learned was that I have control over my thoughts. I don't have to let things get really dark mentally. Also, make habits and do a little bit every day towards you goal. I've been doing that and it gives me a sense a progress that builds my confidence over time.
Good luck.