Can I speak the gospel?

A few years ago I was doing a comedy skit with a bunch of teenagers for camp. We wrote our own skit as we wanted something original. While it mostly was a comedy, we were also going to have a gospel presentation. I as their counselor and also being in Bible college was elected to share the gospel when we performed live. I didn't give it much though as to what I was going to say, I figured that I have been in church long enough and been in enough classes that I should be able to articulate the gospel clearly enough.

I was wrong. I stuttered over the good news of Christ delivering us from sin. I don't know if anyone caught it, but I did and so did God. I remember feeling surprised by my lack of confidence in sharing such simple truth. Heck, I had even preached before, I should be able to give a simple gospel message.

Now, almost three years later, I am wondering if I would still stutter. Do I know what the gospel is? Am I confident in sharing Christ's work?

But more than being able to articulate the words well, I am wondering if I can share it with confidence because I am also living it out with that same confidence. Are my words and my live equally reflective of the redemptive work of Christ? Not that the power of Christ is any less powerful if i am not living it out. But the message does lack integrity if I am not living in the grace that has been given to me.

Lord, may I not be ashamed.