I started using Lyrica for benzodiazepine withdrawal about a year ago. It did wonders the first few weeks, but tolerance grew rapidly and soon enough I was using 600 mg daily. As it happened I, together with my doctor decided that although I was addicted to clonazepam, the benefits of it outweigh being addicted. So there I was, addicted to both clonazepam and Lyrica.
3 months ago I decided enough is enough, I had no benefits from Lyrica anymore and it just made me groggy and feel slow, which wasn't funny at work. So I decided to quit it. I know witdrawal from Lyrica is very hard, although Pzifer says pregabalin is non-addictive (what a joke, but a sad joke...It's
very addictive. Try going cold turkey from a year on 600 mg!).
So I decided to taper off, 75 mg every other week, sometimes 75 mg a week if I felt good. I'm now down to only 75 mg a day!

It has been hard at times, but I have been resilient and listened to my body. My anxiety rises quite rapidly the days following a lowering of the dose and I also get occassional panic attacks.
After 2-4 weeks, depending on how I feel, I will finally drop the last 75 mg and be free from this drug. I have a huge stack of it and will maybe use it recreationally (
very occassionally) in the future, but right now I'm just happy I'll soon be free from it.
You have no idea how slow Lyrica makes you when you use 600 mg daily. I felt like it took away 20-30% of my intellectual capabilities at times, especially affecting short time-memory.