Feeling like a loser?

I’m 19, have been out of regular high school for a while now. I had lots of friends in jr high and in high school but every friendship except for about 3 all ended.. Either we just drifted or had problems. When I see old friends profiles, they have so many friends and have like 200+ likes on their photos and here I am struggling to get 10. It’s not all about the likes, I just mean that I feel forgotten. Like I’m that one loser that nobody remembers or ever cared for.. I do feel very envious of everyone that left high school with many friends and I’m here with a few friends, none of which would ever put me #1 as a best friend.. I’m just always a friend. I just feel like I’m there but not there.