Holiness never goes out of fashion.
Judas is neither a master of evil nor the figure of a demoniacal power of darkness but rather a sycophant who bows before the anonymous power of changing moods and current fashions. But it is precisely this anonymous power that crucified Jesus, for it was anonymous voices that cried 'away with him! Crucify him!'
Do not be afraid of seeming different and being criticized for what might seem to be losing or out of fashion; your peers but adults too, especially those who seem more distant from the mindset and values of the Gospel, are crying out to see someone who dares to live according to the fullness of humanity revealed by Jesus Christ.
An Adult faith does not follow the waves of fashion and the latest novelties.
We, however, have a different goal: the Son of God, the true man. He is the measure of true humanism. An "adult" faith is not a faith that follows the trends of fashion and the latest novelty; a mature, adult faith is deeply rooted in friendship with Christ. It is this friendship that opens us up to all that is good and gives us a criterion by which to distinguish the true from the false, and deceit from truth.
Both need each other: The agnostic cannot be content to not know, but must be in search of the great truth of faith; the Catholic cannot be content to have faith, but must be in search of God all the time, and in the dialogue with others, a Catholic can learn more about God in a deeper fashion.