Can't beat night 1 of Five Nights at Cobson's, any tips?

My main issue is Chudjak. He seems to get in even when you have the door shut. I'm not sure if this is a bug or if I'm misinterpreting something? I think you're supposed to turn off the light so he'll leave you alone, but when I tried that he never seemed to go away. I just heard him pacing around for like 20 seconds, and then the impish ears one came out and ate me.

Replaying the first night is also very frustrating because you can't skip the phone call, even though nothing happens for the first hour.

!g*mers