How do I get my Sims 3 traits back?

uh.. try going to the cheat box (press ctrl + shift+ c) and type in "testingcheatsenabled true" (without the quotes). Press and hold shift again and click one of you're sims. There should be a "change personality traits" option. Click on that. And u can have other fun with the cheat too. Shift click on the mailbox. :-) Hope this helped! :-)