I'm so sorry you're feeling this way, mulan....I have read a lot of your posts and I "hear" a lot of frustration in them.
If you are living at home, things will most likely greatly improve when you're on your own. You will HAVE to trust your own decisions and thoughts and that, in itself, can be a great source of pride and confidence.

I, too, am very sensitive and I don't like it one bit. Neither do I know of any kind of fix for it