A 3.8 is about average (I believe that is unweighted).  Eagle Scout it is good, varsity athletics is good.  Language proficiency is valued (the academy increased its language requirements within the past few years).

Continue taking th hardest classes you can, stay fit, keep performing well in leadership possitions.  Those are the things that the academy looks at.  You might want to talk to your school councelor and/or your local USAFA Admissions Liason Officer (your councelor should have contact info).  You are early in the game, so continue to do well, and try to improve what you can.