@Jane8, sorry for your experience.
6 months is a very long time for an airbnb, legally you are probably already having a tenant and not a guest. (In France it's 90 days). So the normal airbnb agreement is not really approbriate to this period. I do all my entire lodging rentals with an additional rental contract to be in accordance with local laws.
I would distinguish between the different acts of negligence: I'd forget the dirt in a six month rental. As a landlord with a tenant, everything not involing repainting all the walls and changing appliancies is already a success. So clean whatever can be cleaned.
For the damages, go via the resolution center and try to get refund. For the blinds, mirror etc and for the fee, if you have to pay a fee for the garbage, a normal tenant would have to pay for that as well.
For the paint, I usually repaint parts of walls several times a year if I rent the whole atelier, which is smaller, and once every year or every two years the larger place. (Not the whole apartment, just the part beside the table where a wine glass toppled over or beside the bed if someone had to drink beer in bed. That happens.
I bought a dehumidifyer, as it turned out impossible to get guests to either not confound the bathroom with a Turkish sauna or to open doors and windows afterwards. It cost 160 Euros, can be carried easily, is very efficient and I took a low consumption and low noise model. I was so pleased with that thing, carried it around and had it dehumidify everywhere, bathroom, kitchen, before open kitchen cabinets, before open living room cupboards. The most fun aquisition since the iphone 🙂
Before renting one, you should check in a good local homeworker store.