Hello @textrunner20029 I have noticed when folks loose progress that it may be due to logging into another account or accidentally creating another account.
Are you sure that you logged in the same way? Keep in mind, some people may have forgotten to log in using a verified account for example.
Did you notice any errors when you were submitting?
Let me know if that is the issue, if not we can continue to troubleshoot.
Thank you, and Happy Learning!
-Codecademy Community Manager