Not to downplay your legit pain. Buy my parents were the opposite and it was pretty oppressive. Really cared about appearance, and I never had a genuine convo with them in my life.
On the other side of things, my partner's family has a healthy relationship with dirtiness. They clean up after themselves, but there may be a random unused thing in the corner that's been there for months. They're such nicer people.
Edit: let me add that I would be fine with coming to see you at your place. Cleanliness is not that important for me as friendships go.