Please don't just discontinue the benzos, as that would be very uncomfortable and couple be dangerous. Sounds like you have just developed a tolerance OP. There are few things you could do, like cutting down, or titrating off using another medication. But your experience with the tolerance isn't unusual.
^ I too am in the same boat. Ended up doing a way too fast taper with a doc using diazepam. Had protracted withdrawals after that for two months. Long story short, I'm doing much better now and I recognize last year was a rebuilding year for dealing with anxiety and depression without benzos.
OP are you experiencing any paradoxical effects such as panic attacks when you take the kpins? If so it may be a sign you need to start to slowly taper. And by slow I mean a really slow taper.
Dude you build up a tolerance to benzos in a couple weeks, much less a year, its not rocket science. Just taper off them slowly and when you're done you will have a new lease on life and feel much better.