New beginnings

On Monday I begin a new CR 12 step... As a leader. I'm unsure about this. Nervous too. People think I'm ready for this and will be good at it, but I'm unsure. I find it rather ironic that when I was going thru my first 12 step and one of our leaders quit, I was sure that I could handle it. I was willing to help co-lead the group. I felt confidence in myself and my ability. Why now am I feeling unsure if myself?
I watched a movie last night that made me contemplative. A large group of people had been placed in a walled in city and told that the rest of the world was gone, destroyed. They lived this way for 200 years. At the end of the movie they found out that it was a test of sorts. One that they had completed. So now they had the truth and were able to leave and go check out the world outside of their world. Everyone was heading towards the opening in the wall. I started to question why no one was fearful or even just wanted to stay put where they were. I'm not sure I would've wanted to go thru it. What about my comfortable life. Where I was would have become home. No matter how uncomfortable.
So, I now stand with this choice in my life also. Will I take that step forward into the unknown with the promise of hope, a new life?
Jesus is calling. Will I allow Him to be enough? I cannot answer that right away. Maybe soon. Something to contemplate definitely. New beginnings are right around the corner.