Luke Skywalker GOAT character development?

[Nine Tailed Fox]

Wimpy farm boy to bad ass star fighter pilot and jedi knight

[Thorium19]

I raise you Zuko from A:TLA.

He went from a shamed prince who permanently lived in his sisters shadow, to losing everything he previously held dear, then regaining it all just to realise that what he had wanted his whole time in exile wasn't what made him feel right, so he flees, joins the very people he hunted down, and finally finds it in him to cast off the shadow of his sister and beat his demons. Subsequently becoming close friends with those he once hated and helping bring about a new age of peace and prosperity.

(shoutout to Unlce Iroh for being the critical factor for character development)