I had a bad time with this patricular part of the game.
This may not be the best solution but its worth a try.The spawn points for Emily are random, also some enemies spawn randomly wich is kind of anoying because you have to restart.
I made a video where im doing a speedrun for the locations, is also when i got the achievement, all without fighting the enemies.((( Video link: https://streamable.com/p4f1lh ))))-If Emily is not at the first location, press START and RETRY.
-I ran as fast as i can for the first location, before the lights turn off.
-Then i opened my flashlight going for the next locations, turning off the jukeboxes if possible.
-In the last part at the "storage room", im rotating and running for the last location, so that the "white face" guy cant approach me.
Good luck, because this game is all about it.