lol that sounds like bad planning, You have to be there before or At least by 6:30. even in nights that are not peak nights lol,
I usually get there around 5:45, 5:30 sometimes, and yes waiting sucks, but when you get in first at 6:30 all the houses in the back have like zero waiting time, by 7:30 you have probably done half the houses, it can be done
I Remember doing Catacombs by myself and The In between by myself too, when the park opened, there was no line,