so see, what you do here is :
1. never check on any camera other than Foxy's, and don't even worry about him until night 2.
2. listen for Freddy's laughter. after the 4th laugh, check the right door. if you see him, shut it immediately and don't open it again. he will not go away. (irrelevant until night 3)
3. keep switching between left and right door lights every few seconds when you're not checking on Foxy.