Spring Fever? Spending trail rides prancing? NEED HELP!?

When he does that, stop him, and back him up. Keep doing it until he learns that you have control of his face and where he goes. Also something else you can do is scissor ( Some people call it jigging) his face until he slows down. But when he slows down make sure you let up on the pressure and give him his face. Horses learn by pressure and the releasing of pressure.