Having a nightmare then falling out bed and waking up can’t sleep again ??!

I thought having a nightmare in you sleep then proceeding to fall out of bed and finally waking up literally terrified was something that happened in movies
TELL ME WHY THAT JUST HAPPENED TO ME HELLO ?

I never remember my dreams tbh when I do remember it that’s uncommon I also just have sleep problems tbh but today I just had this awful nightmare and I jolted up I’m literally terrified I was on the floor I’ve only fallen off my bed once in my sleep and i haven’t waken up from a nightmare like this is scary lol

Now I’m sitting in the dark alone with my mind racing being left with thoughts and shit I don’t wanna think about but what else do people do at 3 in the morning I can’t focus on peaceful sleep anymore my mind is thinking too much

I got work in like 5 hours I need to get rest but I can’t sleep and I’m shaken up aghhh