Star Wars: The Last Jedi plot idea!

This one is a sort of long nutshell, but not too long. Enjoy!
In the space above their former base on D’Qar, the Resistance’s forces battle through a First Order blockade of Dreadnought Star Destroyers and other deadly ships. After Cobalt Squadron, the Resistance’s bomber brigade breaks through, the First Order’s General Hux contacts Supreme Leader Snoke and Kylo Ren. Meanwhile, on Ahch-To, Rey argues with Luke Skywalker about his training of her, after he refuses. Chewbacca and R2-D2 begin to make friends with the Porgs and Caretakers, creatures inhabiting the planet. Soon after the Resistance sets up their new base on Crait, the First Order attacks and the Resistance sends Finn and the newcomer Rose on a mission to find a special underworld operative in the city of Canto Bight on Cantonica. On Ahch-To, Rey learns the ways of Skywalker, and he begins to have flashbacks to when Kylo Ren destroyed his New Jedi Order. When Snoke sends Kylo and his Knights of Ren to attack Luke and Rey, Rey sends Chewbacca and Artoo away to contact the Resistance. Captain Poe Dameron and Admiral Amilyn Holdo get the message to General Leia Organa, and they head to Ahch-To in the flagship. The First Order sends an attack force there, and a space battle leads to the destruction of many Resistance ships and lives, no thanks to Captain Phasma and stormtroopers marauding the main flagship. Luke proclaims to Rey that he must find Snoke, so he leaves the forces of good and evil and tries to sense where Snoke is. On Cantonica, Finn and Rose are captured by the Order and are about to be executed when the man they were sent to find, a secretive scoundrel nicknamed ”DJ”, helps them out by blowing up the troop carrier the stormtroopers were in. As they make haste to leave, DJ betrays them to support his own ends and lets them be taken to the First Order secret base. Rey and Luke, arriving on Snoke’s base, sneak in, disable the guards, and Luke goes to confront Snoke. Rey senses that Finn and Rose are being kept there, but Luke makes them leave before she can rescue them! Snoke defeats Luke, takes Rey hostage, and blows up the capital Star Destroyer with many personnel still on it, but General Hux makes it off alive. Kylo Ren has stayed on Ahch-To, seemingly forgotten, and begins to realize how evil Snoke is. He then begins a new journey of self-discovery as the galaxy is thrown into darkness once again and the forces of good are scattered and almost broken. These are dark times.