What am I doing here?

I can't write much because I'm at work, but I'm going to write something. What am I doing here? I've been listening to David Platt sermons all day because Cathy is out seeing patients. It makes the time pass. He's talking about spreading the gospel to kids. I pray for opportunities to tell people about Jesus and then never go after them. Like today at lunch. We were talking about concerts we've been to. It was a great discussion, and I was getting into it until new lady asked me if I listen to Dave Matthews. I kinda laugh and go no. Then someone asked me what I listen to. After this whole discussion about secular music I say I mostly listen to Christian music and then thought about saying but I used to listen to... I thought saying that would be stupid and make me look like the weirdo I am. I get to my desk and go "there was my opportunity." I could've given mine musical testimony and I blew it. So now I'm asking myself What the crap am I doing here?