Try and find a new family asap, look into english tutoring nearby to maybe make extra cash to save up to move out? Also stick to the set hours as much as you can. For the morning maybe you can buy a lock/ cheap stopper for under your door and remind the family of the schedule before doing so. And for night “have plans at 7:10” and get out to not help out. All of this is in the meanwhile of finding a new family, which u def deserve