@Jessica247 I'm sorry that you've had to go through this!
Take pictures of what you can, and document as much as you can. Go online and grab links for similar items if you need to replace furniture. Have it all ready to go so that you can include all of this info in a resolution request. If you haven't already, message the guest in the Airbnb thread just to have it all there for the customer support. Just something like "hey X, you trashed my place, broke my bed, left the place in a terrible mess and it will cost me approx X to restore the apartment to its original condition, I will be going through airbnb resolution for damages" - anything to have your side of the story in the message thread.
If nothing works and you end up out of pocket, then just get back up, and start all over again, this time with some changes to your listing to hopefully help prevent this in the future.
I've been listing for almost seven years, have had thousands of guests, and luckily have had only a few nightmare situations. Don't let the bad ones be the guests you remember, make room for some new and great guests.
Good luck to you!