Anyone out there who fully believes in Christ, yet their family is Atheist/Agnostic/Spiritual??

I'm just curious to see if anyone out there is/has been in the same position that I am in..

My family is very Agnostic. They need to have scientific proof to believe in anything it seems. One of my family members just doesn't seem to believe in anything it seems. (I've never asked) and the rest believe their is something bigger than us, just not God per say..

Have you ever just wanted to preach till you have nothing left to preach to them, for you love them and don't want them to suffer?? And to experience life as God intended?

Overall, how do you just deal with it?

Thanks for any comments!