Malty, I know you're going through tough times. I know it's difficult for you IRL. You probably will not agree with this post, and I'm fine with that. I'm horrible at offering advice like this. But please try reading this.
You are in 8th grade, correct? And you're starting high school next year? Well, I don't know what town you live in, but I'm assuming other middle schools will merge together next year. Even if not, there will be new kids from other places there.
Now, I know people at your current school aren't nice to you. Well, those new kids don't know that you're an idīot or whatever else they call you. Next year, just join a club or something, or even just sit next to someone else in class and start talking with them. Easy? Not always. But it's worth a shot.
As for the divorce issues, well, you have a little sister, @Pink_Roses. Talk with her. I know the two of you seem really close, and talking through it with her might help you deal and let out some of those horrible feelings inside. You two can discuss really whatever you want, whether it be divorce or not.
I know you have a purpose in life, Malty. You may not know what it is yet, but I know it's there. And there is a light at the end of the tunnel, even though you may not see it yet. I honestly wish I could reach through the screen and hug you right now and make friends with you, but I obviously can't.
You are amazing, and I know you can get through this, even if you don't think you can.
~Liz (aka Senny/SenseiCoder)