I'm trying to change my default account. I've looked up advice, and my dashboard doesn't look like ones on screenshots, and finding my account seems to give me trouble.
You can only login at one account at the time via www.airbnb.com/hosting (or for UK ".com" probably is ".co.uk" . If you have more then one account (which is not useal), you should logout and login into the other account. Are you sure the login is on the real Airbnb website and not a compatitor's or even fake website ?
I see in your Airbnb profile you have two active listings, so you used Airbb before to create them.