@lover454,
I could dash off something quick and say something about toughening up a bit...but that wouldn't be of much use to you. I have no idea, objectively, whether or not you're over-sensitive, but I'll assume that is not the case.
Consider your respective ages, I'd bet these similar dynamics have been going on for decades. I'd let it go but keep this in minds...at age 88 many people lose their ability to be diplomatic or deliver or offer constructive criticism in a manner that is palatable.
My sister at age 78, sadly, developed Alzheimer and, well, you talk about critical comments ... that could be cruel. Perhaps your Mom is developing some cognitive issues? Based on your comments, she seems to have an over-rated opinion of the value of her comments.
Either way, you can tell her that the comments hurt and would appreciate her thinking first and being less critical.
It's not like you asked for her opinion so at age 59, you don't need a job counselor or a fashion critic's services.
Or do you?