From my own experience and observations, I'd say that women over 50 make the best sexual partners as they know themselves better than younger women, are more confident and in some ways most importantly are not afraid of pregnancy which allows them to explore, like you do, their sexuality with far less reserve than they would have done when they were young. I have one girlfriend in her 60s who I have known since we were 15 who would never have engaged in the sexual adventures, she is having now in her 20s 30s or even 40s.
One caveat, however, is that I have noticed that although many women experience an increase in libido after menopause some do experience a decrease. There does not seem to be a consistent response.
Keep up the good work! And remember you're doing the Lord's work. That's why he gave you a clitoris with over 2,000 nerve endings and multiple orgasms that are best achieved by utilizing such experiences as a multi-man experience. Think of it as a kind of medicine where each injection results in a life affirming increase of dopamine, wellness and contentment..