Need help/advice

First time owning succulents. Only had them for a few weeks and care a lot about them lol Buuuuut idk what I'm doing. I put a few different succulents in a pot and they seem to be deteriorating quickly, especially my splitting rock one. Mine are the ones in the closest pot. And I have aloe seeds in the far pot with the cellophane wrap over it. I've read that succulents don't need regular watering so I only watered them when I planted them.

For the pot closest to the front: The split rock has way different watering needs than anything else, you'll need to separate it. The Hawthoria (one with white stripes) can tolerate less light than the sempervivum and the.... sedum(?) if need be.

For the middle pot: The echeveria will be the most prone to rotting in my experience. The sempervivums will survive outside all year, whereas the echeveria and moon cactus won't. The echeveria and sempervivums will also want more light than the moon cactus.

Edited for clarity.