Now, I know people have all kinds of opinions on this stuff, but what helped me is not super well known, probably because it doesn't make anyone any money, really.
What got me over it finally was reading and buying into Dr. John Sarno's books. Sarno was this mild mannered doctor in New York who stuck to a philosophy for many years and wrote a series of books. The basic idea of his work is that when our brain wants to distract us from something emotionally painful, it has a number of tricks, including the generation of real physical pain. Not imagined pain... but real pain. I don't want to oversimplify how you get over the pain, but it's a mental/emotional approach.
There was a quote in one of his books that I found really compelling. It said that a study did MRIs of a collection of adults and found that there was little correlation between back pain and condition of the actual spine. Many people had bulges in their discs and felt no pain. Some had nothing wrong physically, but were in terrible pain.
My takeaway from the above walking study is that walking is psychologically beneficial. It's distracting. It's physically active. It's routine. It's many things that help our minds as well as our bodies.
Ultimately to get better, you need to really figure out if you're physically hurt or not. A bulging disc may not qualify as truly hurt. If you work with a doctor to rule out a physical injury (which do tend to heal on their own given enough time), then you might consider a mindbody approach.
This video from years ago is pretty good, and the comments are quite something: https://www.youtube.com/watch?v=7qwFjKYlbf4