Older men, by default, have lower testosterone levels. I see where you're 60+ so I would assume that you're levels are much lower than when you were 20.
That said, I've just looked into the big T lately myself. I'm not going to take some dumb supplement, as I already take enough supplements, but I have looked into increasing my T naturally.
Here's a great resource:
13 Ways to Naturally Boost Your Testosterone Levels
As a side note, I eat peanuts every day for the myriad of health benefits they supply. And I've learned to enjoy honey roasted peanuts more than sugary sweets.
Also, google [Foods to increase testosterone naturally] for more resources.