One thing I recommend for horror games is to play with a friend (i.e. in the same room). You can even figure out a way to do old-school controller-swapping (for a VN, maybe each chapter, or after a fixed time interval e.g. every 10 minutes). My partner is a huge horror buff, but also has a hard time with the longer periods of stress that horror games impart vs movies, so we play games this way.