Must it always be me?

I'm so puzzled and confused now. Must it always be me that make you angry? Are you sure that you know me thoroughly? Please think again. My mood will not be the same in everyday single day. I will feel tired, angry, worried and annoyed at times. So does you right? This is not fair to me. I just don't understand, really don't understand. I really don't want all these, really don't want. I really have no idea how long i can take it. I know it's stupid to hurt myself because of you but i had to find a way to vent out my frustration. I really can't bottled up all the frustration inside me. Please tell me how to do and what should i do.