@Sylenka0 "All must be clear before arrival, not after coming, right?"
Yes, that is why I said you should reiterate the rules to guests and ask if they agree to follow them in a message when they request a booking.
I don't know why you think that Airbnb doing this would make any difference from the host doing it. The type of guests who ignore rules and don't show basic respect in a home-share listing aren't going to behave differently just because they got a list of rules from Airbnb instead of the host.
I think one of your problems, Sylenka, is that your listing description says almost nothing.
You need to describe the guest room, what spaces are shared with the host, etc. I would really have no idea what sort of situation I was booking when reading your scanty listing information.
And I don't even see a photo of the bedroom you are renting. Is the cover photo the bedroom? It looks like a living room. Is the couch what guests use as a bed? Guests need to see the bed they will be sleeping in, made up nicely.