I believe everything that comes to my mind. I believe I can get to know other people feelings but I m always wrong.What kind of disorder this is and how can I help myself?

I have no professional knowledge regarding any of that. You know best your experience of the world. The best course of action is to seek a professional and have them help and determine what's happening. The best way to help yourself is to seek quality treatment, and that does not involve random people that have no experience regarding a problem, or a biased experience. It sounds like you would really benefit from seeing stuff from a professional lens that would help you dissect your emotions and your experiences, and of course, figuring out how to handle that in a healthy manner.