it's not your fault. she just fails to see each child's uniqueness/abilities.
until you have succeed and achieve something in your life, only then they will realize how precious you are to them.
..not because of the achievements itself, deep down it's because they realize you have tried your best to make them proud.

you do you. if it helps, sit down as a family and talk things through.
our parents can't tell us otherwise. time changes.
she can't expect you to do things their way or your sister's way if it doesn't work for you.

go out and see people, chill with your friends, destress.