The hints are wack this time, several one is missing. You need to see the convo where Mandy will be at your school, one of the evenings at home in the living room in order to be able to talk with Megan, then another evening at home in the living room where Jackie calls Lauren out on the posters. You also need to meet up with that Will dude, talk about him with the school clothes change, that happens at one of the campaign HQ convos, I agreed to him meeting with Jackie in exchange for the help, then at an early morning breakfast scene at home, I told Jackie about it, then a day later he sent me a mail saying he managed to do the rule change.
You need everything in order for Lauren to win, which is a rather bad design imo, but at least at Friday it will tell you if you had done it all. I did everything but the dress code change, and because of that it was like I didn't do anything, Lauren lost 30 to 70, so I had to rollback, which was utterly stupid, because the game didn't kept track of the events completed so far, and the events for one side or another are basically the same without interchangeability.