Make Finn into the human version of Jar Jar. Bring back Jar Jar himself too, maybe his species can live a really long time. Make Jar Jar the leader of the New Republic, and when you think he died with the rest of them, have him show up with the Resistance ordering Leia and Admiral Ackbar around. Have Finn be extremely obnoxious. For Rey, have her be even more of a blatant Mary Sue, up her obnoxiousness, make her blatantly pander to the feminist audience with cringeworthy "girl power" moments in every scene.
Then make Kylo Ren into a blatant clone of Hayden Christensen's Episode II Anakin. Introduce a horribly badly written love interest like Episode II, and have that be the main focus of his character arc in that episode and what turns him evil. Make it a blatant ripoff of Attack of the Clones for good measure.
Other than that, keep it mostly the same. Have George Lucas be giving his input the whole time, including on the writing, while any time even he might have some reservations, ignore him. So basically, it'll start by ripping off The Phantom Menace and Attack of the Clones, and end by ripping off the Death Star scenes from A New Hope.