I'm a new member here but I was reading this and thought I'd put my bit in....
I've been on a mixture over the last 10/11 years, I've tried Citalopram, Mirtazapine, Fluoxetine and Sertraline over the years but I moved on to Venlafaxine around 3 years back. It was the best thing I've ever done...!! My sleep pattern went back to normal, I became more relaxed, less angry and much nicer and chilled!!
The docs really messed me about with meds, moving me to all kinds of meds but finally I found a new docs who understood me and told me that he'd tried this 'new' drug called venlafaxine and had some great results so wanted me to try it... It worked!!! It changed my life, I take 150mg in the morning and 75mg in the afternoon - both prolonged-release capsules - I got changed on to Tonpular a few months ago and today I've been switched on to Venlablue but ultimately they are all Venlafaxine so its all good
It takes a little time, but stick with it and things will get much more positive!