Tapering off trazodone

I’m currently tapering off trazodone 150mg, and I’m a bit worried about withdrawal, I’d like to be prepared for what I might experience. I stopped taking it at one point cold turkey and it was horrible- nausea, headaches and more. Now I’ve been advised by my psychiatrist to drop down to 100mg for a week and then 50mg for the next week and then stop completely. I’m worried that this sounds like too quick coming off? What has everyone else’s experiences been with coming off it? Thanks