What dad meant was to place a few logs on the fire so it won't go out before morning.
Do not close the flue or your house will fill with smoke.
My dad told me to turn the fire down when I went to bed, my turning the handle thing left as far as it could?! Idk? The handle won't turn and I'd like broken, how do I turn it down!? I want to sleep but in scared the house will burn down