It wasn't hard, although sometimes I stressed too much, which was my fault imo. I basically only stepped down because if they didn't and I stayed inactive like I did, they would've demoted me anyway.
Honestly, the AA position is just a really weird one. When I was AA, there... really wasn't that big of a defined role. From what I understand, AAs are now basically s-mods with a few admin powers. Which still makes them just... there.
Sometimes I wish they'd just make it one admin position, because I think it'd be less confusing that way (and honestly do we NEED two different positions?) but I doubt that'll ever happen.