Welcome to the Chronic Pain forum of Healing Well. Let's hope you can move on a road to get your pain reduced if not eliminated, and not need to be here anymore. But in the meantime, this is a great support group. We're not doctors, but can share a lot of our experiences.
As straydog mentioned I had lumbar fusion surgery and may have waited too long, although it's possible that surgery wouldn't have helped anyway. I actually had an evaluation for surgery at the 2 year point and was told by a local surgeon he wouldn't recommend surgery. I went to a big teaching hospital and had a minimally invasive fusion, but turns out the first doc was right. All that time, though, I had been doing numerous treatments and procedures - a lot of physical therapy (that's usually first on the list), but then a variety of injections. With the numbness if you're not seeing a good neurologist you need to be. And possibly have a consult with a neurosurgeon, but surgery doesn't fix everything. Sometimes a herniated disk can be helped by PT. But you don't want to wait to have tests done, and start these more conservative treatments.
However, depression is part of chronic pain not only because of all the losses we suffer in life, but because what happens in our body to produce pain also produces depression. Depression is not just in our heads, but is related to changes in biochemistry. So anti-depressants also help with pain, although they're not the only medication that's needed. So it's ok if your doctors want to treat the depression, but they need to also be treating your other problems.
BTW, klonopin isn't an anti-depressant; it's generall used for anxiety, so that's not one of the meds that's going to help with chronic pain.
Hope this helps a bit. Again, welcome.