Trazadone was the hardest withdrawals . I was only on for roughly 8 weeks at a low dose of 25mg for sleep. Horrible daily headaches. The taper off was just brutal. Be careful, I got off ativan easier than Trazadone. I know it works for some people and the lucky ones who can just cold turkey stop or the brave ones who take long term for sleep. I Hope the mirtazapine is good for you. I went with CBT therapy .