Hate to tell you this but this will be a very valuable life lesson to learn. No one on earth has any magical potion or spell that can make another person feel the same way we do about them at all. So the only one you'll ever need to impress is yourself and realize that what you want here can never happen so grow up and move on and find someone in your age group to woo after. You are NOT the first nor will you be the last to have a little school boy/girl crush on their Teacher so try to find someone else. Good luck