Beginner Gardening: I feel bad for this plant., 0 by Leysha

Leysha wrote:
I received a plant that I believe is a desert plant (succulent) and it's not doing so well. The person who had it previously didn't know anything about plants and this guy was flourishing and now that I have it (i know a bit more than her) it's going downhill faster than a boulder.

The bottom most leaves are wilting away, some leaves have cracks in them, and I can't tell if it's elongating in places or if its new growth.

I hardly water it and keep it in a room with lots of filtered sun.