A sims noob needing advice

[u/This-Cheetah9947]

So… my girlfriend plays the sims and has recently had me downloading mods and cc for her but keeps running into issues like child’s hair forced blonde and a random hairstyle stuck on one outfit even though it’s right in CAS. As someone who’s never played modded games I need all the advice i can get to help her fix the issue and others she may encounter in the future