I think I have the method that you can concern to use. I know your situation that you mentioned in the status, and I think I'm a kind of person like you. But now, I can control mysefl better. Beforehand, I want to ask you a question, Have you ever readed a book named "How to stop worrying and start living" by Dale Carnegie. In the book, he said that if you was worrying about something, you just sit down, took a paper and wrote some suggestion following by:
<ol><li>I have to force yourself to wonder that: "What is the worst thing you will have if you just keep doing?".</li><li>Preparing for the worst thing about finance, emotion, relationship ...</li><li>How to improve the worst thing to be better?</li></ol>
If you accept that you are not perfect, if you can't show your everything you have, you will lost everything. Now I also have trouble about verbalizing, but I have change myself because I know I have values and my ability is useful.
You ignore your concernment and limit thinking alot, you just go straight ahead. For 1 week, 1 mouth ... you look at yourself, you will realize that you will be more confident and your value is richer.
If you want, we can chat and help each other better :)))