I'm sorry that your going threw this :/ my thoughts are with you. As for the dreams when I was younger I was really into dreams. I had started to practice lucid dreaming methods. I could never sleep then but If I did I always had nightmares. I tried to train myself ti recognize certain things as signs of dreaming. It never really worked but there was one time it did.

Triggers

I was about to jump off a building end it all. So In did. Mid jump I suddenly released I had control and i turned into superman and spent what felt like 1 hour soaring around a city fighting crime. It ended with me being shot in the back of the head....but either way i was 15 at the time and it made my week. It sucked cuz it started a obsession to get control of my dreams. Never worked well again. I would wake up instead of getting control like that. I then found out about cannabis and for some long miserable years I smoked insane amounts and lost my dreams all together. They are slowly coming back but medication doesn't help... I always have scattered memory's of nightmares now. Always restless sleep. I had a friend who claimed he could every night. I never could. :/ always made me so jealous!