There are many things you can do. First... take a breath and calm down. No offense, but your posting was a very big run on sentence and it can be hard to read. Communicating effectively is a foundation for understanding. If you are being injured, then you should find a local religious leader, someone you believe in, to sit and talk with. Ask for their support and see if they can help remove the beings from your living areas. This may seem drastic but doing physical harm is not a joking matter and needs attention. Do you have a faith? Can you communicate with them? Can you verify your mothers past/what she did? Is anyone else harmed? Any pets experiencing problems? Have you done another to alter your perception or make you vulnerable? Any mental illness in your family that can be causing any of this that you are aware of?
Once you have regained your calm and patience...Begin tracking the things happening. Draw, write, document in audio/visual as much as you can. You dont have to believe in a specific religion to ask for help but you DO have to believe in what they do and the power above if you want them to help/for it to work. Let us know if we can help.