Okay so forgive me if this sounds stupid

I haven't played Overwatch since 1 shut down. I played a shit ton of the first game. Missed the game so I downloaded 2. Figured since 2 was an "upgrade" all my stuff would carry over only to find out NONE of my cosmetics are unlocked. Nothing. Where did it all go?? I worked hard for some of these just for them to be gone?? What happened??