The first thing I try to do with women who have both of these issues is to make sex comfortable. It is pretty hard to be interested in intercourse when you know it is going to lead to pain.
You might consider vaginal estrogen--estrogen that is 'localized' rather than 'systemic' and is delivered only to the vagina. This would require a prescription product. Or you need to commit to using a vaginal moisturizer consistently; this reintroduces moisture to the vagina on an ongoing basis.
Once sex is comfortable, then approach the issue of desire, which admittedly, is difficult. Yours might be a situation in which to consider using testosterone or buproprion, an antidepressant that can have the side effect of increasing desire. Engaging mindfulness and choosing sex is important to the sexual relationship. I review Basson’s research with patients, and remind them that desire does not play as big a role in women’s sexuality at this stage of life, so being intentional and choosing to engage is often necessary.
Find a provider you trust to talk through some of these issues and begin to explore options.