Derek,
I am having my right hip replaced on June 23th. I had my left hip replaced 18 months ago. I decided to do this second hip more quickly, no need for the pain to increase so much as last time before the surgery. I had a much better recovery than you did, so perhaps I am less apprehensive, but here is the bottom line: You cannot happily live with a 'diseased' hip which has no cartilage, and this sort of operation is very successful. And I am plenty scared and bummed out about major surgery: No matter how good the surgeon, things can go wrong, and no matter how well it goes, there are weeks or (short) months of unpleasant recovery. But you cannot live a happy life in so much pain. Get it done, you will be a happy man. And you are only 46 years old, you have a long life ahead of you!
Best,
Mark