As a reformed drunk, I want to be able to take on a reasonable amount of tasks with competence and not leave others holding the bag.
I so don't want to be that person like your mom. It's probably because she feels useless unless she bakes those unnecessary cookies. Like me, she fishes for compliments, maybe because she feels irrelevant to the family. Perhaps the only heroic thing she knows how to do is make a ton of Christmas cookies!
I do have a set role in my family: I'm like Ronald Reagan: a generally good-humored and benevolent soul who is nevertheless way, way off on another planet. I am universally recognized as being a bit drifty.
But a lot more competent at the basics than I used to be! Becoming sober has helped a lot (not merely stopping drinking).