I thought I'd just chime in about mods and cc.
As others have mentioned, MC Command Center is a pretty popular mod. I don't use it because I play rotationally, but if you want story progression with your unplayed families, it's pretty great.
Littlemssam has a bunch of nice quality of life mods that can really help with the game and of course it's usually worth poking around at
Mod the Sims to see if they've got mods you'd like.
Zerbu has a bunch of really popular mods that can let your sim go to work or school if you have the Get Together expansion.
As far as CC goes, most CC creators have moved to tumblr, and the best place to get started is
Lana's CC Finds (make sure you sort by Sims 4 CC, you don't want to get Sims 3 files in there by accident). I don't know if you like Alpha or intend to go with Maxis Match, but if you go the Maxis Match route, let me know and I can point you to some pretty great cc out there.
