Hi Nagi. What a devastating unacceptable situation to find yourself in. Has it been going on for a long time? Are there are other adults living in the house as well? Are they in the house/on property/nearby when this is actually happening with this abuser? Resorting to biting, kicking, or screaming continually and loudly are what come to mind for me and if he were to strike you in response, which I hope would not happen...that would be difficult for anyone to ignore or minimize. If you loudly screamed with all you had in you, it would possibly take him by surprise and give you some time to get out of the room to a safe place with someone else in the house.
Has anyone in the group you refer to had any interaction with you and if so, had any suggestions that would be of any kind of help?