So my friend for years wants to

Open a bakery and make me in charge of decorating cookies and cakes and teach classes. Is she crazy? I’m good, but not that good.
I’ve told her no no no. I said the other day,”Geez give it a rest...I’m not that good.” She acted like she didn’t hear me. I told her she wasn’t listening and she said,”I’ve heard every word, but I choose to ignore.”
I compare myself to others and I’m amateur at best.
Would you do it if you didn’t feel good enough?