That is the hardest part of the game. I am sorry that you are having difficulty.
It is impossible to guide you perfectly, but there are 3 sequences.
1. Find the right order of objects to interact with (if the room changes: correct. If the room does not change or reverts to a previous room state:incorrect)
2. Explore the long corridors, they will change as you move through them, sometimes it will seem like no progress is being made, but that is to confuse you.
3. Follow the sound to find the exit.
I am sorry that it is difficult. If you are not having fun, please leave the red room for later. Please use the computer and try the log out option for a cute surprise! :)