What do I do?

Brittney • Brittney, 20, Aries. Mylifeasbrittney.com. ❤️
So, I'm heading into my last semester of my sophomore year in college, I did two years of undergrad & I had to declare my major; now that I declared I'm having second thoughts about it & I'm very upset. (I made an appointment with the career services / therapist thing) I know people change their majors but I'm really feeling like I wasted my first two years & it's too late. Now I am a prefectionist who doesn't give myself enough credit for anything. I have no idea what to do or think.