Whats wrong with me/?

I don't know what specifically might be wrong with you, but you clearly have some sort of psychiatric issue. The extent and uncontrollable nature of your rage is not typical. With such extreme mood swings, I think that seeing a mental health professional might very well help you. It could be that your problem is routed in a chemical imbalance in your brain that could be helped by medication or, at the very least, therapy. Best of luck!