are you serious???!
Dude, you need to chill out and not ski for like the next year....fuck mang, that blows, overshooting sucks, ive done it too, i didnt get concussion just messed up back. Seriously park riding isnt worth it man when you keep getting concussions, it happens though and its serious shit. Maybe park isnt your thing for now, you need to rebuild yourself and stay healthy but dont be bumping your head at all.