Hi, frostchild!
You will have new friends in your new school. It's a question of time and a bit effort on your part.
Don't be afraid of loosing them. The good ones for you will remain.

Do you think this group of friends you mention you lost began to see you as different and in any way, they made you feel that you didn't belong to the group or is it possible you withdrawed from them little by little bc you see yourself as different or inadecuate?