I was there on Sunday just before 9 and it was slammed! Didn't get on RotR of course. I would say get there as early as you can and head straight to either slinky dog or smugglers run. Even if the lines are long, they'll be the shortest when you first get there. If you're feeling worn down, take advantage of some of the shows (Frozen singalong, Indiana Jones, Beauty and the Beast, etc). Definitely come to the park knowing you may not be able to catch everything you want. Have your Disney Experience app open and refresh every 15-30 minutes but avoid FPs for shows. Those should be easy enough to get in to. Through the refresh method, I could get a FP for Rockin Roller Coaster, Midway Mania, and Alien spinners. I saw one for Tower of Terror but I'm not too interested in that. Good luck!!!