I think it's best you limit asking your mom's advise about emotional subjects. Right or wrong she's entitled to her opinion if you ask her opinion she is entitled to voice it, if her opinion upsets you don't ask.
I had a friend once who was in a bad situation I let her cry on shoulder gave advise she ignored after about I don't know 100 of the exact same instance I got really blunt. (I don't know how to make clear how obvious the outcome was without giving information if she recognize so just trust me it was OBVIUOS along the lines of "I stuck my finger in a light socket and it hurt" ) " really? obvious thing happened AGAIN? I can't believe he did that 101 times you could have never seen that coming(I was 14/15 )especially since he said he planned to continuedoing obvious thing. It's not going change , wanting it to be different will not make it different. I don't want to hear about this anymore" I simply was not equipped to fix this issue , he was an evil jerk but she had no intention or capacity to face reality. It was like dealing with a drug addict who hadn't hit bottom yet. It took her several more months to walk away from this situation only to enter an almost identical situation and stayed in it for 10 years.
As a general sort of update, what you did is pretty much what I did. We barely talk at this point but I think it's for the better. I can't be her crutch forever.
As for what my mother said, she and I talked about it. She meant exactly what she said. I told her why that peeved me so much (because it seemed like she wasn't taking into account a million other things AND that it's like saying you can grow up out of alcoholism). She told me that you can, but then explained. I told her why that was the stupidest thing to say to me at the time and she agreed; she said she wished she could have worded it better.