@Jimmy346 If your booking went through Airbnb, you're SOL. Those bookings can't be sold off or transferred to someone else - you have to adhere to the cancellation policy that was clearly displayed to you when you made the booking.
If you wanted to have the flexibility to get out of a booking that you couldn't turn up for, hopefully you were smart enough to buy travel insurance with a CFAR benefit. Otherwise, I don't think anyone can really help you here. Life's lessons can get expensive.