Issues with vitamin d

I'm currently doing a topical vitamin d but the levels are staying within 35-38 and that's low for me.. a year ago before all this happened I was maintaining a level of about 80.. now I react to everything.. I haven't tried vegan yet but that's made of fungus and yeast and that's mold so that's the last thing I want to do with nine strains of mold already in my body.. I'm currently living in a place where there is no sun.. at this point I was thinking of trying it again with a small amount of magnesium and other cofactors but I don't know which type.. do I go vegan or do I go wool? With K2 or without..