don't stop talking, try to gather as much people as you can and go to streets, go to people who has authority, go to court with lowers, tell the news, tell human rights, but you must not do it alon, you need to gather as much people and as much stories, numbers and if possible evidences... one voice will not do much, a voice of a group may do much much better job
be aware that if you do too much you might get to prison your self, spicially in a country like Iran you may get accused of many things, so be careful whom you are talking with, and be clear and lawful in every step you take