Is schzophernia .. genetic or not? .. ?

my mum had schzipoherina .. and none of my other family .. have had it just my mum and .. some of the problems she had .. i experince them aswell can .. it be ped on gentically? .. i hear voicess in my head and im really paranoid .. i care too much wat eoplee.. say .. and think about me. and sumtyms i feel watveah abd comes to me im being punsihed by God? i dnt wana end up like my mum .. wat should i do? xx