I accidentally turned on parental controls, when I try to turn them off it says my password is wrong when I know it's not. What do I do so that I won't have to wipe everything from my computer?

Trying to fix something else in my settings I accidentally turned my parental controls on. When I tried to disable them it said my password or adminstrative name was wrong when I know they are both right. I even tried to change my password to the account but that didn't help. I don't want to have to delete my account and am not sure how to back everything up if that is the only option. Is there a simple solution to this?