My husband makes me feel worthless

My husband always compares me to my sister. Because my sister is a nurse while I’m a teacher. I don’t make as much as my sister does. My husband always says I should have studied something better where I could make more money while he’s only a driver he doesn’t even have a high school diploma. He acts like he’s a doctor or something. I have told him so many times that he hurts my feelings but all he cares is about money.