Hey Cutiekayleigh-
There are much more experience members here than me so take my comments with a grain of chicken grit.
Sounds like you're on the right track with re-potting in a gritty mix and pulling off the dying leaves. I think they just need more sun. I would find a spot with good morning sun/part sun and afternoon shade outside. When you need to water, try to do it in the evening when the sun goes down. I found this summer that watering in the morning leads to rot. These are alpine plants so SC might be a bit difficult, but I am sure you can find some tough varieties that will be happy in the right spot.
Glad you found your way over here! We have a lot of fun discussing these little plants!
Jesse
