WHAT TO DO???

So a couple of weeks ago our minister had a message on hell. At the end he showed a small video of two friends that were in an accident the one was saved the other one wasn't. So then it was a dialog between the two friends the one that was not saved wrote the other one a letter & asked him why didn't he tell him about Jesus. He wrote if I was your best friend why why didn't you tell me. Anyway after that he challenged us to share the good news with others well one the way home God put a couples name on my heart & I knew He was asking me to say something. I shared it with Jared about two weeks later & he said I should say something to them guess what I didn't. I had many opportunities but did nothing about it. Last week once again I was talking to the wife & she was telling me how they have started to go to church. She also told me how there was someone else who had talked to her husband about God & that was what finally got him to go. I can't get this out of my mind I feel like I have failed a huge homework assignment from God. Like I was telling Jared I am so glad they are going to church but why didn't I say something to them, what if that other person didn't share the Gospel with him? I really don't know how to put into words what i am feeling, do I feel like God will never give me another chance someday? No I think He will but why should He. I have asked Him for His forgivness but feel like I should be doing more but what I don't know.