I dived into mods for the first time. Looking for any recommendations and I have some questions.

I've been using the NRaas Mods and tons from Simlogical,MTS,Simsasylum as well as awesomemod to fix school overcrowding.I've got almost the entire NRaas Mod collection installed and have over 700 Mod files installed in my game.My game is a lot less laggy than it ever was without Mods and I used to get the Error 12's a lot from having EA's bugfest turned on.