I felt an urge to play Skyrim again, had a lot of fun for a day or two, but eventually after I added some more mods I started getting frequent CTDs and have been trying to figure out what the problem is (and how to fix it) through the crash logs.
I might just have to remove Immersive Citizens from the load order but I really don't want to because it really makes the NPCs feel so much more "alive".
Maybe you should check some lets plays instead of watching tutorials. Just an episode or two to get an idea of what the game is and whether it seems to be up your alley or not.
The lets player will probably explain some mechanics as they come up while they're playing (at least in the beginning to help new viewers unfamiliar with the game) and that should be a lot easier to digest than someone purely explaining a bunch of game mechanics in one go.