First, let me start by saying I am a very inexperienced succulent owner. Though I have read a lot about plant care and also own many cacti and other plants, I am still unsure when it comes to the proper care of a succulent. Despite that, I wanted to dive in to this new life of beautiful plants, so I bought an adorable succulent arrangement from my local Home Depot a few weeks ago. It was plump and healthy in the store, and remained so for a few days after bringing it home. That was until one I day I made what I believe to have been a fatal mistake, I watered my succulents without checking the soil! I was so caught up in watering my other plants, I just gave it a little sip figuring it had probably seen some neglect on the store shelf. The next couple days after, it started showing signs of distress. The bottom leaves of my echeveria started turning to mush and falling off, there are noticable spots of rotting on some of the other succulents leaves, and the soil remained significantly wet despite not having any water since that first time. Now I have removed one of the plants (more like it fell out of the soil while I was discarding of the dead leaves that had fallen) and the soil has dried out completely. Everything seemed okay for a few days, but now my plants are suffering again and one has even wilted completely. I am worried that it is also a problem with the pot they are in, though the arrangement is very pleasing, it doesn't seem like there's suitable room for the plants. I don't have much experience with repotting, expect with plant seedlings. I am afraid that if I were to transplant my succulents, it would only make things worse. I also believe that it could be that they actually need some water now that things have dried out, but I am also hesitant with that for obvious reasons. I hate to leave them suffering in this condition though, so I am looking for some advice! I have attached a picture as well, anything would be extremely helpful, thanks!