my major

so i knew since high school that i wanted to do psychology. i’m trying to tell my family that psychology is what i want to do but they’re scared that i won’t make money off that major. but it’s the only thing that i’ve actually truely been interested in. i’ve known since high school that this was the major for me but my family wants me to major in business. i did took 2 business classes and i didn’t understand a thing and i’m trying to let them know that but they won’t let up. how do i let them know that i appreciate what they’re doing for me but it’s not what i want to do?