Eagerhorse, I am 64 and masturbate every day. In fact I ejaculate once a day but actually masturbate on average three times a day.
I have managed to separate my orgasm from ejaculating semen. One important thing I do is ejaculate after my evening shower, I do it into my hand and then swallow it. This way you are retaining valuable ingredients in the semen.
Incidently, masturbating and taking time over it is a very effective way of relaxing. I do it every day straight after work.
As I still have to stay away from home at times in my job I find my penis an invaluable pleasurable companion!