I've been using the Nexus Mod Folder to install mods and am running Skyrim through steam, except for SKSE 2.2.6 which I chose to install manually and SSE Engine Fix Part 2 which had to installed manually.
In Steam I have:
Skyrim Special Addition
Skyrim Anniversary Addition Add-on
The Current mods I have enabled are:
Unofficial Skyrim Special Edition Path
Unofficial Skyrim Creation Club Content Patch
UIExtentions
SkyUI 5.2 SE
SkyUI Flashing Savegames Fix
Racemenu anniversary edition
PapyrusUtil AE
JConatiners SE
Fuz Ro D'oh
Alternate Perspective
Alternate Prespective - Bone Wolf Patch
Address Library for SKSE Plugins (1.6.X)
(Part 1) SSE Engine Fixes for 1.6.29 - 1.6.640
NOTES:
1. I am launching Skyrim through the SKSE launcher
2. The Plugins ARE enabled on the Nexus Mod Manager
3. I checked xEdit and there doesn't seem to be any conflicts? But I am also new to this so I have no idea what I'm doing there
4. LOOT is refreshed and sorted
Genuinely at a loss, all other posts I've found are usually resolved because the Plugins are enabled or they're not launching through the SKSE launcher or something like that that I think I've already covered. Any advice is appreciated