Why can’t I make friends?

I’m a current college student (19M) and I seem to be incapable of making a single friend. I go to school clubs. I try to talk to people. I try to take an interest in other peoples lives. I even went to rush. Despite everything I have yet to make a single friend. People don’t really contact me and when I see them on campus they rarely even say hi. When they do it’s always just formalities.

I don’t understand what I’m doing wrong, but it feels like everyone is constantly rejecting me everywhere. I am not particularly ugly, nor am I rude or disrespectful. I treat everyone with kindness and respect. Yet it seems like no one likes me. Any advice would be much appreciated.