I think it's great that you are achieving so much. Keep motivating yourself. The one thing that you need to do though, is to stop feeling like you're going to fail. We all have failures and make mistakes, but you learn from them and move on, right? Instead of making a list and trying to prove to yourself that you're capable of these things, just be happy with what you've done, and accomplish more. YOU should be proud that you've accomplished these things, even if you don't think so.