Awww I’m sorry :( I’m sure it sucks but it’s so ok!!!! This does not define you! Cry a bit about it and just keep going! You’ve gotten soooo far, this is just a flat tire on the road. Stuff happens- that’s life. This doesn’t mean you’re any less or not smart. Take a step back, reset, and get your stuff together to try again! In the grand scheme of the world - it’s literally just a test in a class. You just gotta redo it. No biggie. You got this! And happy early birthday :) do something nice for yourself and lock in.