If you do all of this in one Edit Town session, without saving the sims to the bin and replacing them, they'll keep their jobs and relationships.

To be more thorough, you can evict the household, save the house to the bin, bulldoze the lot, replace the house with its bin copy, and move the family back in. If changing her outfits doesn't help, this sim might need a more comprehensive reset: Go to Edit Town and evict the teen's household and then move it back in. For MasterController, no cheats are necessary-click on the sim and select NRaas > MC > Stylist. When you're done, be sure to disable testingcheats (enter 'testingcheatsenabled false'). Then shift-click on the sim and select Edit in Create a Sim. To reach CAS, bring up the cheats console (crtl-shift-c) and enter 'testingcheatsenabled true' without quotes. The teen may have a broken outfit that's preventing her from aging up properly changing her clothes and hair for all outfits would fix that. If that alone doesn't help, try reassigning her outfits in Create-a-Sim (or use NRaas MasterController's Stylist function, if you have the mod). These caches should be cleared regularly even in the absence of any game issues, as they'll fill up with stale data. The first thing to do is delete the five cache files in your TS3 game folder in Documents.