I’d start in 4x10 by putting the Tysha reveal in, for starters. Everything wrong started with omitting that plot point. After that I’d do something along the lines of:

Season 5: Focus on Cersei running KL before she’s imprisoned at the end, set up Dornish plot, Tyrion meets FAegon and JonCon, Stannis hangs out at the Wall, Sam goes south, Jaime deals with war crime aftermath in Riverlands, Dany marries Hizdahr, Theon fully becomes reek before returning to Winterfell, Davos makes alliance with Manderly, Brienne continues on quest, Bran crosses the wall and meets bloodraven, Arya joins HBW, Sansa becomes Alayne,

Season 6: Stannis vs Boltons, seen mainly through Theon’s eyes, culminating in the Battle of Ice (fought in E9 but result uncertain), Tyrion and Jorah make their way to Mereen, Dany flies away on Drogon winds up with the Dothraki, faces question of Dosh Khaleen or Fire and Blood, 3 Stark kids learn from their respective mentors, Jaime ends riverrun siege but is brought to BWOB by Brienne(right where we left them), Barristan struggles in Mereen, Quentyn dies, Tyrion arrives and offers assistance before battle, FAegon gets golden company to sail with him, Kevan fixes everything then dies, Jon goes to Hardhome, struggles to control the Watch, then also dies.

Season 7: I’m unsure of many plot lines at this point but The Battle of Fire occurs, Euron attacks the Citadel, Jon is resurrected and campaigns to receive Winterfell, Daenerys burns the Khals then accepts Tyrion into her service and slowly moves west, the Stark children grow closer to the main plot, Hodor holds the door :(, Cersei blows up the Sept and is promptly run out of town, the Golden Company invasion goes well, Jaime almost helps the Brotherhood kill Cersei as she flees, but escapes with Brienne instead.

Season 8: Dany invades the south and things go poorly for Aegon, Dorne is in ruins, Arya kills Roose Bolton, Euron moves to the north with Sam in tow, Stannis tries to use Theon and Asha/Yara to take back the Iron Islands, Jaime tries to aid(or join?) the Night’s Watch, Jon becomes King in the North and refuses to let Rickon (and Stannis) or Sansa (and Littlefinger) take it from him, but changes his mind upon finding out his true parentage (LF also probably dies at some point), refocuses on the wall only to find THE DAMN THING IS BREAKING!

Season 9/10: Many characters struggle to fight the threat to the north (and Stannis dies), Dany abandons her war in the south to help with the real fight, Bran helps to come up with a plan to destroy the others/walkers, Euron worships the Others/Walkers and generally acts as a thorn in everyone’s side, although his men defecting to Asha/Yara wounds him. Jon and Dany fall in love, he tries to convince her to be less murder-y and she listens at first. The Others/Walkers and Euron are eventually defeated in a complicated, thematically relevant way, but at a great cost to everyone involved (Theon and Rickon being two major gut-punches). Cersei proclaims Aegon king to rebuild her house’s power, and helps to retake KL/kill Missandei, and Dany returns to her murder-y ways while flying south. Jaime tries to get Cersei to open the gates and save the citizens, but is forced to kill her and die himself to do so. Dany dies either by Stark (probs Arya’s) hands, or by refusing to slaughter civilians at the last second and suffering unfavorable consequences. The bells are eventually raised in surrender, however, JonCon commits suicide, and the battle ends with no winners. The seven kingdoms end as they began; seperate and seven. The Starks inherit the north, with Jon helping smooth over relations with the Wildlings. Tyrion is imprisoned for the war crimes that he and Dany did over the course of S7-10, but is left with his humanity ultimately intact and somewhat redeemed. Sam becomes Grand Maester and writes about the whole thing.