My plan has always been to be persistent and KEEP CHECKING!!! All caps because it's important lol. On my last recent trips there were some activities I wanted to score, but neither were available when I could start reserving them. (I couldn't get princess meet & greet tickets on my cruise vacation and I couldn't get a flight of passage fastpass at wdw) I just kept checking and sure enough, about 2 weeks before sailing more princess meet and greet tickets popped up and about a week and a half to my wdw vacation,a few flight of passage fastpass were available. We also wanted fast track at epcot and ending up scoring them the day of, thanks to my persistence. Don't give up! Good luck!