Cast thy bread upon the waters: for thou shalt find it after many days.
A lack of reception of the gospel is no excuse for us not preaching it or not showing kindness. However, we can’t expect the world to come to our door to hear. We must go to them. I would encourage anyone who feels the Lord calling you to go out and preach to do just that. Use what you have for the Lord in the gospel. When you get to heaven you will see the results of your labors.