The problem with the people its the beginning of the conversation , you should at first try to be not ashamed or being shy in face of the other people . They're human as you are , nevertheless there will be alway people that will be judging you stay strong..
Im sure that there is someone or some people that you think that's will be interesting to talk , try to learn the world around you and the news to start the discution .
The most opportunate moment if you are studying its the sport class , at this moment try to force yourself to talk with the people around . the people will be easier openened for a discution with each other .
Maybe the clothes , idk how ya style is . try to convince yourself to go to shopping and change your style . We are in a world where the appearance is the the basic point of the jugdment , someone with nice clothes and neat will be easier accessible than a dirty Weab or geek..
and my last advice , its not the number of the friend that you have its the quality of those , you ought choose wisely your first friend(s)
Cordially A.Z.