What's the secret of your success?

College-Bound 大学への進学がきまった　大学進学が希望の

bound　バ-ｳﾝﾄﾞ　adj)　...行きの

You are always the brightest kid/teacher in the class.

brightest  bright ﾌﾞラｲﾄ　adj)輝く･利口な