Interjection:
I’m glad you are working on yourself. Most men I know are also working on themselves, so it should be a good shidduch.
Aside: Off the cuff, I’m not sure the goal should be to not care what other people think at all. G-d made us care, because it is something we can use to further our avodas Hashem; and like everything else, can also be used for the opposite. That is how I understand it.