That's very positive you're worried about the salvation of the closest people to you and I know it's very difficult not only because of the problem of their salvation, but also because you can't practice Orthodoxy easily.
So, if I can give any advice, don't try to indoctrinate, not by force. Just give them sometimes a spiritual article, explain why you do something (connected with Orthodoxy), be a "walking advertisement" of Orthodoxy by being a good Orthodox Christian. And of course pray for your family.
I'm adding my humble prayers. Lord have mercy!