How to stop comparing myself to others?

Salam. I am a girl in my freshman year of college. I've never had confidence in myself and I've always looked at girls around me. It became especially worse when I went to an all girls muslim school and compared myself to everyone else. I see other girls with tons of friends and a good academic future ahead of them. Now I'm in college, I barely have any friends and I have no idea what I want to do as a career. Any careers I'm interested in I don't believe I can accomplish. I know thats a bad mentality. I say alhamdullilah regardless because I know Allah made me the way I am for a reason but it's really hard not to look at others and wonder why they've been given these qualities that I lack severely. How can I stop looking at others and caring about what they think and work on myself and be happy with myself? Thank you.