I feel depressed thinking about my nonexistent love life.

I’ll try to keep this as brief as I could. Im a senior in hs, and I’ve never really dated anyone before. I often feel sad when I think about how it feels like nobody will come into my life eventually. When I think about my future, I feel sad because of how far it feels. When I think about the present, I think about how my friends have already dated someone before. I know it shouldn’t be a huge deal especially in high school. I’m not a very social person, so it feels impossible for me to even have a chance at a real relationship. I want to know it’s gonna be okay and that it’s nothing to worry about, but it always keeps coming back to me. I know there’s more important things in life than worrying about relationships, but I just keep thinking about it.