Re: My auntie has a problem..
Well if she has a genuine interest in changing something about herself, I think the best approach would be to ask what she would like changed, and how she can bring that change into her life. I think it will be very empowering to her if she can participate in the process. If you tell her what to do then she will be dependent on you. Once she discovers her new found independence, it will be easier for her in the future.
However if she is comfortable being the way she is, then she need not change anything, she should do it for herself not to show or fit in with others. :) Always look within your self.