You say that you are married but need to know what is your calling within the Church. Did you not know that being married is also a calling? In Hebrews 13:4, Scripture tells us, "Marriage is honourable in all... and in verse 5 and 6 it says,"... be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee. So that we may boldly say, The Lord is my helper..."
This may sound out of contexts to you but what I am trying to convey is that when God calls he directs or guides and he does it loud and clear so you will not make a mistake. The fact that you could up to now not discern what he wants you to do for him, seems to me that he is still preparing and equipping you.
Don't fear thet you may die before having done the thing God has called you for, because he says in Isaiah 55:9-11, "For [as] the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts. As the rain cometh down, and the snow from heaven, and returneth not thither, but watereth the earth, and maketh it bring forth and bud, that it may give seed to the sower, and bread to the eater: so shall my word be that goeth forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper [in the thing] whereto I sent it.