How do you deal with people?

This schooling is only temporary. Focus on your studies and so you can get scholarships to help pay for college. Don't worry about popularity. Be yourself. Be nice, but it is fine to also be reserved and to be a loner who is interested in other things besides boys and fashion and whatever else. Also, there are a lot of girls in high school who are also not into the popularity bit but are just passing through to get start on an education and move on in life. You can be friends with each other at school without becoming deeply involved in each other's lives otherwise. Also, join a club or something, you meet people there in smaller environment and start to grow social courage and connections.