First, I would like to say, wow you are beautiful. Secondly, you are a graet English speaker. You speak English better than most Native English speakers and I appreciate that. You aren't "overlysensitive" at all. You are just human. We all feel bad things all of the time, but you are just different because you react to those feelings physically. That's not a bad thing. And bullying is a terrible thing to have to suffer, especially as a teen. I think that you just need to confront your father. He is probably the source of your sadness. Politely confront him, of course. Ask him about things he did. Things you were upset by, bad things he did and said. And then, no matter what he says, tell him very calmly that you forgive him. I'm no therapist. But I know what deep rooted problems are like. When it comes to the high school bullying, you must never feel as though those were easy times. Find strength in them. You went through alot and now you are here, and wonderful.