Meds that work for the flashbacks/racing thoughts?

I know this is pretty basic but I’m new to my diagnosis. Specifically, I have CPTSD which triggers all the same things as ADHD. Was in a terrible 2 day day flashback cycle last weekend when I tried drinking espresso, a stimulant, rather than the calming things I was trying. Cut my racing thoughts down by half.

I’ve heard time release aderol is effective. My concern is I a already have trouble sleeping and when I take stimulants I need to take more sleeping meds. Doesn’t seem healthy but maybe it’s what I need to do for now while I’m in the healing process for my PTSD?