You cannot see.
You cannot hear.
How do you communicate with other people? How do you carry out your profession? How do you flirt? How do you do your shopping? How do you find your way round in a new town or city? How do you go about your hobbies?
Just imagine how you would cope with these ordinary every day situations - perhaps that will make it easier for you to understand the problems an individual suffering from Usher-Syndrome faces every day.