It sounds as though there's a bit more going on here than maybe you can see clearly. I'm old, so maybe my brain is going -- forgive me if these questions strike you as being irrelevant:

1. Are you getting any sort of therapy? It sounds as though individual and family counseling could be very helpful for you in this situation. (And don't tell me there are no therapy sources because you're in a rural area. I used to live in a rural area.)

2. You say that the students at your former school all hated you. Did you do anything to try to make friends there? If so, what did you try, and what was the result?

3. Could you talk to your mother about some sort of extra-curricular activity? Something that is related to an interest of yours, so that the other people involved share that interest with you? Maybe an art class, riding lessons, swimming lessons, 4H, FFA, a quilting class -- just something that interests you enough that you won't mind if you don't make friends there.

4. Check your local listings for any volunteer organizations in your area. If you like animals, often times the local humane society needs people to help with socializing animals, or cleaning cages, or whatnot. You can usually find an organization around that needs volunteers, and you can meet many people that way.

5. You mentioned that you were "kicked out" of your last school -- what sort of incident was involved? Not specifics, more a question of did you do something violent, did someone do something to you, was it related to your depression, etc.

6. Is this a new area for you? Or is this where you grew up? If you've moved recently, how recently? And what sort of area were you living in before?

7. Can you tell your pediatrician about this next time you see him? (Or her, of course.) Could you ask your mother to take you to the doctor to discuss your depression, and then talk to him about this situation? Trust me -- ANY reasonably competent doctor will tell her that she MUST do something to address this issue. It is very, very unhealthy for you to be this isolated. I would venture a guess that this is the absolutely best way for you to get some relief from your isolation, by the way. A doctor can say things to your mother that you just can't.

I guess I have to say that I do think that having friends IRL would do you more good than internet buddies, so I very much hope that something works out for you. Good luck.

Let me say it again: good luck. I hope things get better for you very soon.