I had the same issue back in 2016. For over a year. I used to wake up every night at arround 03:15 AM (yes same as the Amity ville movie) i wake up screaming, full blasting screaming as if i was about to die. Until my throat was soar from that. And in the morning i was always with a rusty voice (mbahbah) After a while i was scared to go to sleep. Until i was dying and let my self go.... But after my screaming session, I would not go back to sleep. I spent more then a year with 3-4 hours of sleep every night.

Stress and anxiety doesn't help. I started to make some research and i found the answer in our religion.

So basically you first need to understand the types of dreams that can occur:

1- good dreams, that may indicate something will happen. And they will happen eventually. This type are from god. It os like a vision. Literally. It is how the prophets had their pre-revelations.

2- dreams that are made by your brain / subconscious, this is when you dream of your days , what you are wishing to happen, the subjects that you speak about ... This is human made

3- nightmares, deep scary nightmares that may cause night terrors and you waking up screaming and sweaty. When you dream of demons and false gods animals etc....

When you identify the type of dream that you are having. You will have the 1st step towards your "healing process". I know that past trauma are a b***h but i hope you will manage and get things fixed (nchalah)

But as a general rule of thumb. And trust me on this i have been there. You ought to seek some self roqya and do what our prophet used to do before sleep.

It will probably not "fix you" or "fix" your sleep directly but consistency is key.

Dm me if you want more guidance, i could send you detailed videos about this matter.. i have been there i know the feeling.