Not really a tip but every 3-4 seconds check the left hallway that way you got your eyes on both bonnie and foxy at least that's how I managed but I did used that on night 5, 6 and 7 on 4/20 mode
ngl you don't even have to check for bonnie chica or freddy, just listen for footsteps at the doors and count laughs from freddy, then after the fifth, every other laugh shut the door