How do I get the Skyrim Winter Weight mod to work?

Tyring that once more cause I messed up.

For XP32 Skeleton (assuming you meant this and not XPMSSE) you just need to check that the racemenu plugins are actually being enabled. For some reason it often doesn’t get enabled right after being installed and you have to manually toggle them on in Vortex. I’m not sure if this is the case with other mod managers:

For the Vanilla Outfits Options you get these with the install of Caliente’s Beautiful Bodies Enhancer CBBE:

For some extra physics I think a few people have custom physics mehses running such as CBBE 3BA (3BBB). You can set the desired physics level when installing it:

CBBE 3BA (3BBB) will conflict with both Trivu’s conversions and Caliente’s Beautiful Bodies Enhancer. Just set your rules/load order as follows: