You have the right to not be abused by any adult, but your rights are sadly limited under the law. I also cannot help you, as I do not have the right resources.
Some resources for children in Pennsylvania
PA ChildLine - 1-800-932-0313
Emergency (as it is happening) - dial 9-1-1
ChildHelp - 1-800-422-4453
I can't help you otherwise. Only you can help yourself. These resources are here as a limited guide as to what sort of help and support is available for child victims of abuse. Children have the right to self-report their abuse. Sadly, you do not have the right to report being hit or otherwise physically manhandled unless it leaves a permanent mark. If it does, use a phone and take a picture of it, if the phone is available and not taken away.