There is no way to cheat and guaranteed strategy to beat every night, but it gets a lot easier when understand how the animatronics work.
Movement opportunity: A chance for animatronic to move, if a randomly generated number between 1 and 20 is smaller than animatronic aggresion level. Only triggers when the animatronic is not currently watched over the cameras.
Freddy: Moment Opportunity every 3 seconds.
Aggression Level: High
Laughs Every she uses her movent Oppertunity. After 5 times she stand direktly in front your office, she jumpscares you the next you put down the monitor or she gets a successful movement oppertunity. How to survive that keep the door closed until you hear her laugh again.
Chica and Bonny: Movement opportunity every 5 seconds
Aggression Level: Medium
They move Randomly in the pizzera every time they get an sucessful movement opportunity. Bonny is always on the left and Chica on the right . They appear in front of your office after around 5 successful movement opportunity's you can hear them move in the corridor if their close enough to jumpscare you. You should be careful if they are nearby as they can jam the open door for the entire night if your not careful.
Foxy: Phase progression Chance every 5 seconds you don't look at the monitor.
Phase 1: she is inside the Attraction
Phase 2: the is peaking outside
Phase 3: she is fully outside
Phase 4: She sprint down the Hallway to get you.
(You can block with door her if you fast enough, but it will drain a lot of energie.)
Golden Freddy: Rare Easter Egg you can get randomly by looking Cam 2b with every low odds (roughly 1/32000). You know you get it if Golden Freddy's face appears on one of poster in Cam 2b. After you put the monitor down Golden Freddy appears in your office and jumps scares you if you don't put your monitor back up fast enough