Would have done something different entirely. Assuming I have to work with the characters in the movies.

Rey: She's a nobody but people have Force powers all over the galaxy and don't know it. She's "special" but not because of her parentage.

Kylo: He quit Luke's Jedi school but didn't kill anyone. He wanted to explore the Dark Side and Luke basically just kicked him out.

Luke: Needless to say, he didn't try to kill Kylo. But he still quit the Jedi school because if he ran off his own nephew, what was the point?

Finn: He has PTSD from watching the storm troopers shoot all those people. As a result, he has trouble using a blaster. We also learn more about how he was kidnapped from his home.

Luke doesn't die. But he does save Kylo's soul by helping him connect to the spirit of Han. (let's be honest, Harrison Ford wasn't coming back unless they killed off Han)

Rey becomes Luke's first new pupil since Kylo.

After Leia dies, Poe becomes the leader of the Resistance.

Phasma kills Snoke and takes control of the First Order after Kylo defects. She also gets unmasked in the final battle with Kylo.

And no "It's the Death Star but with life on it". That's just stupid.