Hey, Kelly:
Couple of thoughts: One about plastic surgery: My sisters and I laugh about this one (I am the youngest at 47, so it's a topic!!)
I think if I keep my face and body endlessly "young" with plastic surgery, it will be that much harder to let go of life when my time comes to die...
at least if I am very old and also look it, it will be a whole lot easier to look in the mirror and say: "ok, I'm done! I can move on....."
But, of course, your mom is all about control.....even controlling time....jeeeeepers.
And I saw a parallel (which you may or may not see....that's ok) beween your mom and my ex NNNNNN.
My ex is failing....he is losing work, his marriage stinks and he is losing the respect of his children. It was and is all his own negative doing.
One reason I can't find any joy in his obvious downward spiral, is that he is still trying to take me and the kids with him . God help him (but of course, he "doesn't need help"). If he werent' such a jerk to us, I'm still not sure I would find any happiness in this....it's more like pity, that he will never be happy. What a wasted life.
I think that as soon as you can extricate yourself from the energy play between you and your mother (as in it is no longer YOUR focus, either) then you will be free of her. As long as you still care what she thinking, feels, etc, about you or your successes, you are still keeping that energy (good or bad) between you going. I believe this to be true for me as well......and it is definately easier said than done. (If I finally do it, I'll let you know.

) However, your moving on, with your own life and goals, is no small part your mother's decline.....and (it's the case with my ex) she will no doubt get worse as you get better. I think that's inevitable....as you pull out of that game and stop supplying her, she will make some counter moves to get you back into that.
Keep moving forward, and keep in your head what YOU want from your life. It looks like you are doing this already, right?
I'm also sorry your mom is such a miserable b****. But someday you will thank her (maybe not to her nipped and tucked face) for teaching you how NOT to do life!!!