I think a lot of people responding "get a brake" are making that recommendation based on the assumption that you are a relatively decent human being. Since none of us know you personally, that may not be valid. You could be a complete malignant schm*ck. In that case, I would pass on the whole front brake idea if I were you. First, your friends wouldn't think you were cool and second, being a Junior there is a very good chance that you haven't reproduced yet.

So to recap. If you are a decent person, get a front brake. If you are a malignant schm*ck, go without the front brake. Either way, go out and ride!