I've discovered I'm a sub, can you show me what that means?

Respectfully, I've recently discovered not only that I have submissive tendencies, but that I crave releasing all of control to a confident woman, in exchange for adoring her without reservation. My experiences so far have excited me and scared me. I don't know what this means yet. I don't think I want to be humiliated and I don't think I'm into pain, but I do want to put the pleasure of another ahead of my own.

I am 44, married (my wife is a bottom), straight. I'm a business professional running my own nonprofit company in Northern California. I'm 6'7 and 215 lbs. If you are willing to teach me, I would be very grateful.

Thank you,

JR