aproudbyg:
Firstly, I applaud you for taking the first step and speaking out about this situation. It takes an enormous amount of strength to face it and actually talk about it, even anonymously.
Second, if you have a school guidance counselor, consider yourself lucky and talk to her ASAP.
The school bullying is inexcusable and should not be tolerated. The whole situation at home and with your siblings is not in your control and the last thing you need now is to suffer from bullies.
You have a bit more power than you think you do. You just need guidance from a responsible adult who cares enough to help you through this in a way that you will not get hurt. I suggest you do this very soon. It will be very hard at first but worth it.
I urge you to keep in mind that this is not connected to you or anything that you did or didn’t do.