hi, I can see how you are feeling a bit alone. If I were you I would keep in mind that this situation wont last forever and try to make the best out of it. I wonder if you can still meet up with your old friends somehow? Your parents might be able to drive you so you can see them once in a while.
From what you are writing it seems a bit that you might be overanalyzing your friendships with your current classmates and that isn’t very useful. If I were you I would focus more on myself. For instance try to find a subject at school you are particularly interested in. Try to do things that make you happy and you will see that the rest will come naturally. At your age there is so much to explore. I know its easier said than done. Maybe you might even realize that you and some other classmates have more in common than you first thought. I hope things will get better soon