Get your camera only on Foxy. check it maniacally every second to delay their shenanigans, if you see them gone from booty bay - just wait for their running sound without a camera - save energy and delay it for as long as you can. For Bonnie and Chika just listen to the steps, you will have plenty of time to react. Forget Freddy, just count to 20 after 5 PM and close the right door.