Being told I’m depressed and on medication when I don’t feel like I am

My father paid for me to see a private psychiatrist evaluation (as I have zero faith in the nhs). They’re putting me on venaflaxine but I don’t feel like I have depression. Sure I have the God forsaken word “low mood” but I’m sure I’m not clinically depressed. I feel like there’s something else going on. I have bad nightmares and flashbacks (in dreams and real life from being abused for over a decade. I’m an alcoholic, I’m very impulsive with decisions and get obsessed over things easily (he screened me for ADHD which I ranked high on but he ruled out autism). Has anyone been in my position. He said to try EDMR or idk the treatment word for a brain treatment, brain spotting maybe ? Any advice