Alright, a few things to note:
Foxy will be stunned by you opening to any camera. Foxy has a random cooldown every time you lower the camera until she can become unstunned. This means the best plan is to flip the camera wildly while looking at the camera that is most useful. My choice is the dining hall because it will tell you exactly when Chica and Bonnie leave your door without using those shitty lights.
Occasionally, you will have to check Foxy, just to make sure she isn't running towards you. This can happen every 30 or so seconds because she actually takes a long time to get to you after she leaves Booty Cove. In this case, the course of action should be to wait on the left door close button until you hear any footsteps, at which point you will close the door.
After attacking, Foxy will be stunned for about 15 seconds. During this time, you don't need to flip wildly. There are some serious oddities with her behavior that I don't know how to explain. It's possible that the stun window is random, but I have never seen it be less than 15 seconds.
When Fuzzboob gets there, you're just a bit screwed. If you keep your camera on her, she will never attack, whether your camera is up or down. This basically just makes you fiddle with lights to check if Bonnie is gone and close the right door when you want to check Foxy.
With these strats, you'll probably get fucked by Foxy a lot bc you forgot to close the door. But once you pass that hurdle, you'll get a victory dub.
Beating night 6 only unlocks night 7. Beating night 5 is what gave you all the cool new scenes. On night 7, you can unlock 6 plushes by using different codes.
20/off/off/off
off/20/off/off
off/off/20/off
off/off/off/20
The final 2 codes are a secret for u to discover B)
Beating 20/20/20/20 gives you a new sex scene, but I've never seen it so idk if it's any good XD