If I'm sitting watch a film / netflix etc, there is noise and that seems to distract my brain from going to dark places.
It's like I'll be reading a page and then by the end of the page I've taken nothing in and my brain is forcing me to think about stuff I don't want to think about. Intrusive thoughts like you suck as a person,you're fat, you're ugly, why do your friends like you? You suck at your job etc.
I think this is the same reason why I struggle to sleep, just being alone with my thoughts trying to sleep ends up putting me in a bad place.
It sucks because I used to love reading.