I'm really sorry to hear that you've had such experiences in the past! Airbnb offers AirCover for Hosts on all bookings, which covers damage by guests to your space and belongings. If you'd like to read more about it, you can have a look here: https://www.airbnb.co.uk/aircover-for-hosts
I hope this answers your question, but give us a shout if you need any more help!