@TickleMeElmo,
Hi, Elmo.
I'm a mom of 4 kids, two of whom are teenagers. My 16 year old daughter has no friends in her school, yet she's been there since preschool.
Her sophomore class has 25 kids, period. If you're a little different (she is shy and marches to the beat of her own drum), it is noticed. There is one girl who is the undisputed "head" of the girls and all the rest, except my daughter, follow her blindly, hence the ostracism.
My son, almost 14, is the opposite. He has a close group of friends since preschool and is "friends" with all the girls, though he laments the fact he has no girlfriend. The downside to his situation is the drama he gets in the middle of. I worry about the influences and temptations being part of this group may entail at his age.
Sometimes not being in a "group" is a good thing. Because my daughter is not "in", she's not involved with drugs and alcohol like the other kids in her grade are getting into at their parties. She thinks it's dumb to talk about makeup, boys, and clothes all the time and has expanded her interests outside of school to compensate (church, library volunteer). I think she, like I did, will blossom when she gets to college. When I got out of high school, I loved college so much, because it didn't matter who was who (I went to a middle size state college). I made a few good friends and met my spouse there (10 days into my freshman year!). I consider my college years the best of my life; I'm certain you will enjoy them much more than high school.
My advice to you, like others have said, is to be yourself and don't change who you are to be someone's friend. Find clubs outside your school, perhaps at your local Community Center. Perhaps the best way to meet new people is to volunteer, at a library, local pet shelter, nursing home, food bank, etc. Most of all, enjoy what positives you can find in high school and discard all the rest as nonsense!