telmac69:
How do I find that special someone who can take me 'to task' but steadily.
I think you need to be clear on what you mean by "special someone". I would not consider a paid professional (even at a bargain price) a "special someone". I interpret that as a significant other with whom to share more than just an occasional beating. But I could be wrong. So please elaborate.
If I am interpreting you correctly, the answer is 'the same as you would meet anyone.' The difference is that you will need to drop hints as you flirt and get to know each other and see if such a relationship is something they share an interest in. Though, you could narrow your odds by looking for local "munches".
You also say that you had these desires as a teenager and that you are now 67. That is quite a long time to wait. And while it's admirable to act before it truly too late, you might find that attempting this for the first time at your age might make it more difficult. Still, it's not impossible, so get out there and start looking. And if you aren't looking for a full relationship, you might be surprised at where you might find willing disciplinarians in your own circle. Good luck.