For your enjoyment, I offer a pubescent Achilles. At this point in his life he is living half wild with his future boyfriend on a mountainside, under the care and tutelage of a centaur. He'll likely be a little more standoffish and abrasive than his older counterpart, and more noticeably self-centered because all his life he's heard that he's been destined for greatness and etc.

Get this child some friends, he has one.