What do you do when your account has been hacked?

Sarah

Someone has seemed to have gotten on my account and Locked me out by changing the password. I have made a new one which is not a big deal but they seem to be starting issues fighting and being very rude to people for no reasons. Now is there any way I can have it be deleted with out being on it? I didnt set up my email yet on it either. Reason I worry is it has pictures of me my child and fiance on it and there making me look bad.