You are nervous because you are making it about you.
Your nerves will settle down if you tell a different story.
The best story to tell is one of generosity, about how you are doing it for someone else.
We like to make everything about us. Blame, stress, and anger are generally all feelings that are rooted in selfishness. We are worried about our agendas, how we will be perceived, how we are trying to protect, and how we are controlling everyone else so we don’t have to deal with our own uncomfortableness.