God's plan for enlarging His kingdom is so simple - one person telling another about the Savior. Yet we're busy and full of excuses. Just remember someone's eternal destiny is at stake. The joy you'll have when you meet that person in heaven will far exceed any discomfort you felt in sharing the gospel.
Actually music gave me the support when I needed it. I would never have gone to college unless I'd gotten a piano scholarship. And now I'm so glad I got to learn to play the cello which is a different experience you're flexing a different muscle but it's beautiful because it is music.