Age Regression (DNI if you are uncomfortable)

Idk if this is okay to put on this forum, i chose this one because both me and my bf are littles due to past trauma

so, background, my bf and i have been together officially for 5 months, he has known about my age regression and been my caregiver this whole time

on saturday, we were messaging and it was late and i said did you brush your teeth honey and he replied yes mommy, so we talked about it, turns out he is too, he's just very shy about it, so now when he is little i am his caregiver, and im so happy and grateful he trusts me enough to share this with me, i know how hard it can be, but im scared of messing up, i've "babysat" or been "Auntie" for my friends who are littles when their cg isnt around or if they dont have one at the moment, but this is different, does anyone have any advice? I know the gist of it, and there hasnt been problems so far, we've established rules, punishments, and safewords, but I really want to be the best caregiver he could have