had to restart halo reach after i recovered my account

I was trying to make another one of my profile fo my friends to play on at the same time as me and i barely have interenet enough to g on live so i thought t woulkd take a long time so i shut it off then i couldn’t play on it so i redid it and let it go all the way through now i have all my achievements but nothing else on reach can you help me get my stuff back