Hair growth help? PLEASE~?

My hair is up to my shoulder right now and I need it down to my knees. First, my hair grows fairly fast but not extremely. Second, I'm using different herbs in my shampoo and my diet is well so my hair will grow faster (Mint, rosemary..etc.). In 9 months will my hair be from my shoulder to my knee? Thank you~!! Or at least, fairly close to the knee.