ALL apps damaged or incomplete

Every single one of my apps is damaged and cannot be opened(doesnt even show the icons, they are blank). I cant even access the the terminal (atleast the one way i know how, via spotlight). Sometimes textedit will open if i click a word document or media player if i try to play a movie. Other than that only my calender opens. Ive tried everything except reinstalling my OS. The issue is only on this user account, if i make a new one it works. This is the second time this has happened and the first time i just deleted my user and made a new one. I dont want to do that again. Please help!