Here's my personal testimony on the topic
Don't push them and don't throw Jesus down their throat. Leave your life in Jesus.
My dad was the type that did the opposite of what you wanted him to do. He went to church as a youth but as an adult, he did everything that he was big and bad enough to do and I was just like him. In fact, they use to say if you put me and daddy in a barrel and rolled us down a hill a SOB head would pop up every time. We cursed together, told people off together, smoked together and partied together and then I moved out of state and found Jesus. In the years to follow I lived my life for Christ and my dad would say " wow you don't curse like you use to, you don't drink like you use to, you stop smoking" and I would nod my head and keep living. Now when I talked to him about Christ he didn't want to hear it but my lifestyle change he noticed. About 5 years later my dad called me up and told me to sit down. I was like oh Lord what now and he said " I joined a church" all I could do is shout. So I say live your life and let your Light shine they will see it and want the same peace that you have. He had joined the men's choir and the usher board as well when he passed away.
When daddy died he was in a coma and I was at peace because I knew he has given his life to Christ and that he was in a good place. It may not come when you want but it will come