My biggest flaw

Many things are in my mind. But I don't know how to express it out. This is my biggest problem I think. I don't know how to express myself. Sometimes, I want to tell someone what I'm thinking but I don't know how to express it. I think I only have 2 choices. One, learn how to express myself. Two, find some other way to express (I'm not sure how). No, there's another way, but kind of stupid. Find something that make me forgot about that problem.....