The possibility of making an error should never, ever stop you from doing anything
Don't ever be afraid of "not getting it right." In truth, there is no "right" way of doing anything ... there is only the way you are doing it. Share your positive energy, enthusiasm and empathy. Everybody will feel it and all the doors will begin to open ...
So go ahead. Focus. Do it. Enjoy the outcome.
Nothing wonderful has ever been accomplished by anyone who was worried sick about it not being wonderful.