If you are 20 years old, this is the time you prepard yourself for the rest of your life. Especially intellectually. Your mother may be worried you are not "feminine enough". THERE IS NO SCORE GIVEN OUT!!! Except maybe in a beauty contest. Just practice good grooming. Treasure your body as it is, for what it can do.

Your mother sounds like mine. She is wrong. The more you get away from her, the more friends you will find.

Schooling, an occupation, is the most important thing you can do for your life right now.