Hi @Rafael2047
I see your property does sleep 6 people, and you already have quite a number of good reviews. So I think it's the length of the booking (6 weeks) that's making you uncomfortable?
If you don't want to do such long bookings, you can decline (if it's a booking request) or just say in a message that it's too long for you (if it's only an enquiry and not a booking request).
Then go to the calendar and shorten the maximum stay to what you're comfortable with.