work and practice

I have practiced various forms of meditation for much of my life and have experimented with abstinence. Only recently have I sought to fully embrace brahmacharya. In embracing brahmacharya, I am getting a sense of it's liberating power. I am already in my late fifties. I have never married nor do I have children. My libido is still strong and brahmacharya is often a struggle. For the past ten years I have struggled with intense fatigue. I work full time in the social services and view this as a kind of karma yoga. But due to my fatigue, I must spend most of my weekends in bed. I also feel that my meditation practice (and brahmacharya practice)would be stronger if I had more time and energy, but I feel a sense of responsibility to keep my job.
At my age do you believe brahmacharya could restore the lost energy I have experienced. I believe I drained my energy with a nervous disposition and through putting myself through college and graduate school at a late age. Any comments would be appreciated.