sorry didn't know where to put this, anxiety or ptsd or what, it's a ptsd for me

feel like a child for this, but is anyone else scared of the dark and of night?
didnt used to be but sure as hell am now, feel like a right idiot, adult and scared fo something that seems so juvenile

every night it kills me, half the reason i can't cope at nights and i try to fritter my time looking at pc or wishing i could talk to someone but everyone is sleeping, scared to try and sleep, sleep = nightmares but night = scary