The idea that long standing low back pain means there must be something severely wrong with your back that requires more invasive treatment like nerve ablation, injections, or surgery, is flawed. If this was true, there would be strong evidence suggesting good outcomes from these interventions - however, no such evidence exists.
Bottom line: pain does not correlate well to “damage”. Long term pain is complex. Surgery is not necessarily (very unlikely to be) the magic fix. A lot of what is traditionally advised for back pain (scans, rest, stopping activity) actually is associated with worse outcomes.