You've gotten good advice about tech and your physical safety, but I've got to chime in here. Think at least three more times about racing a teacher at your school. He should not be doing this any more than he should be showing up at your parties. It's a clear sign that he does not have the proper sense of boundaries, and you don't want to deal with a person like that when they have power over you and your friends.
Take three months, do some mods, learn to launch, and smoke him in June after you've graduated.