Vaginismus headspace help

I'm 19 and I have vaginismus, I've been trying dilators for at least 6 months now but I'm not getting very far because I struggle to get into the right headspace. One thing I've noticed is that I have widely varying degrees of 'horniness' and the kind that makes it easier for things to go in is very rare for me so I'm unsure if maybe it's a libido issue but regardless I think I definitely need help with the mental side of it, any advice?