Thank you! I was having an awful time figuring out which door was which. It almost feels like the map is backwards, but knowing it's Spade/Club Diamond/Heart is helpful. I also had no idea how to unlock locked doors, so super big thanks on the trash can tips!
It took me a bit to figure out the connection as well. The tutorial doesn't really explain the connection between the doors being locked and the racoon being the problem, and on top of that, which trash can she's in is completely random and unrelated to which room gets locked, so it's not straightforward or obvious that she's the one causing the problem at first.