Energy level has gone from 110% to 1%

I just need to vent. In my early 40s I had the energy level of a teenager. I went out constantly and had a really active fun life, including my social life. Now it is 7 o’clock on a Friday night and I am trying to force myself to stay awake for another hour or two. I feel like I have aged 100 years in five years. I am only 48. I am on HRT and it is not touching my low energy level. I knew that people slowed down as they were older, but I never imagined it would happen so quickly and be so dramatic. Speaking of dramatic sometimes I feel like my life is completely over. Anyone else in the same boat?