Oh, wow, that's alot to take in! I guess sometimes things can be very tricky, and even more so for a newbie like me! If it has anything to do with water, then it's a lack of. I will be getting perlite to mix with my soil this weekend, which should further help any drainage. The pot does have holes now that I got after it with the drill!
It is indoors, as are all my cacti/succulents. Would that be an issue when deciding when to water as opposed to having it outdoors? (It's 105 here today, so that would dry it out faster!) When I added drainage holes to my pots recently, I left the stones in the bottom to help with drainage. I wasn't sure with the holes if they needed to go or stay.
Here is my Ghost Plant (or rather plants, as there are 4 small ones). The one with the least amount of leaves was damaged by something that fell on it, so that's why it's much more bare. The bottom leaf on the plant on the far left is starting to get soft at this time.