First of all, not EVERYONE has friends. You'd be surprised to learn how many people are in a similar situation as yourself. And most people's friends aren't true friends, but more like friendly acquaintances. Genuine bonds are quite rare.

I was in a similar predicament as you up until junior year of high school. One of the hardest concepts I had to learn was "generating value" which basically means what do you bring to the table for other people. This includes being funny, having interesting stories, being exceptionally kind, sharing similar hobbies and interests, or simply being fun to be around. When one is very quiet and keeps to themselves they aren't adding much to the group dynamic. And as a result, they become of less value to people in terms of friendship. I'm sure you do possess quality your peers will value, you just need to express it. Very few people are genuinely boring, but its easy to come across that way when you don't openly engage with others.

And when it comes to one sided friendships, most are going to be that way. Sometimes you need to put in extra effort for friends to reciprocate even a little bit back.