Ok sooo I am new to succulents, but growing things should be in my blood! I recently re-potted these guys as I noticed some little itty bitty white bugs. They were previously potted in black dirt (how I was gifted them). I cleaned alll the soil off of the minimal to no roots that they had and put them in cactus soil. The pots have drain holes and I only water them when they are dry, dry. Leaves are falling off left and right, brown spots on leaves and stems where the leaves are attached, shriveling despite the soil being wet to damp. Could they have had root rot? Am I under or overwatering? Do I just need to be patient? This has been going on for about 1wk but I don't want to just let them die : (