When reading your post, my first thoughts and feeling were that you have SUCH a HUGE PASSION for this. So I just can't help but think that if your let your passion shine through during your presentation, they will be excited for you to continue with the project!

God is always with us. He lets us choose how much we let him help. He will help us every day in every way we choose to call on him. You have the knowledge and skills it will take for this project, but God can help you overcome your uncertainties. It doesn't take much, just a whisper to him each time your have this uncertain feeling... nothing fancy. Just ask and KNOW he will answer you in his time...but he WILL answer.

I'm thinking of you and hope you find comfort soon!