I used the cheat engine and managed to leave the health value at still and at maximum it turns out that winning is impossible, it will only let you advance, it attacks you even if you have the doors closed and all the mini games ready at 3 am it will stay at the door from there even if you do the missions you will not be able to get to 7 am it seems that the gallery is not complete or the dating mode I don't know but it won't let me advance | version 3
I beat this night, its not impossible, just hectic, the game tells you "USE THE CAMERAS, HUNT THE HUNTER"
She (Red Ari) will not move closer to you if you watch her, she starts in the long hallway and her path doesn't change (Long Hall, big circle room, right office hall), the challenge is keeping sanity up to hear if something breaks/falls over, and the Poppi Bombs above while constantly checking on her, being quick.
You
can keep the doors closed, Since regular Ari wont open the door, but once sanity runs out, you'll not hear any sounds besides your breathing, so if the essence valve opens, if poppi's bomb above you, you wont hear the giggle. So you have to be vigilant. The only door danger is if Maddie comes to talk to you, use the microwave as normal (3x uses) and close it again.
The biggest issue for me was Sammy, No matter what, doors closed or open, Sammy has a chance to sit in your lap once you look at the cameras and return to the office. if shes in your lap and a poppi bomb is above you, you have to shake her off asap to not have it explode and instantly lose.
If you aren't watching Red Ari, she keeps moving, and if she reaches the door, its an instant game over as well.
So, yeah, just watch her as much as you can.