The Sims 4 once again allows you to shape your sims’ personalities with different traits. If you’ve found that you don’t like the traits you chose, though, there’s no easy way for you to change them, unfortunately. EA hasn’t made some sort of concoction for you to change your sims traits a regular way. The way you make ’em is the way they’ll stay and live their lives. If you want them to, which, guessing by how you’re here, you don’t!
Lucky for you, there is a way for you to change their traits! By cheating!
You can open up the cheat console by hitting CTRL+Shift+C and then typing “testingcheats on” (without the quotation marks). Hit enter and then type “cas.fulleditmode” (again without the quotations) and hit enter again. Hit ESC to close the cheat console, and once you do that, you’ll be able to Shift+Click on any sim to edit anything about them in Create a Sim as though you were first making them. So go ahead and Shift+Click them and hit “Edit in CAS” and you will be able to change their traits (as well as any other thing you’d normally change when you first create them).
Congratulations! Your boring ol’ sim will be all new!