I've been suffering from flash backs and nightmares for a long time but I keep getting new ones, things that I didn't even remember

I wake up screaming or crying and when you have your other half in bed with you it's so hard as I don't want to wake him.......
I did have therapy for them a few years ago but they discharged me once they thought we had worked through everything but its obvious that's not the case.....
My nightmares are horrible I feel everything and they always seem soooooo real and when I wake up I'm so disorientated and I hate it I'm bloody 22 and at night I won't even go down stairs on my own, when I go to the toilet I have to leave the bathroom door open as closing it scares the hell out of me I feel like a little child
I can't sleep at night very well as I'm so scared of seeing his face when I'm asleep it feels like my life is being run by him and I don't feel that there is much I can do I'm never going to just forget what happened to me am I??? Am I ever going to be able to deal with it??