Self-pity

"Self-pity is the psychological state of mind of an individual in perceived adverse situations who has not accepted the situation and does not have the confidence nor competence to cope with it. It is characterized by a person's belief that he or she is the victim of unfortunate circumstances or events and is therefore deserving of condolence. Self-pity is generally regarded as a negative emotion in that it does not generally help deal with adverse situations."

Lach is totally right. I self-pity all the time. I always feel like the victim and I want him to apologize to me every time we have an argument. Is this a mental problem? I would like my mind to die right now just so I could have a peaceful mind and get some sleep. I don't want to overthink things anymore because I think that's making me do self-pity. Whenever I overthink of something, I always end up with the conclusion that I am the victim and this person needs to apologize to me. I hate myself so much.