why do perants try to change their kids

I am going to be 33 and both of my perants always find something they want to change. My dad wants me get a linces, but my disablities makes it to hard for me. And my mom wants me stop wetting the bed and have a cleaner house. They are never satified or ascept me for me. that is what i am thinking. i do not know if i misreading or not