But then, I didn't feel real good ALL the time when in my late teens/ early 20s (with exceptional lebido/performance and stamina btw) when, I'm assuming, my T levels were ok (don't know, never felt the need to go get tested).
I recall one day when I was 21, my workout partner came by to pick me up after work at my apt to go work out and I told him I didn't feel like it and said I wasn't going that day. He said that is the time you gotta push yourself and go which will make it easier and easier to go as time goes on. And he was right of course cause (as you all know) once I got there, I was glad I went.
Course he was a couple years older and been working out a lot longer and so was wiser about such things.
(It did happen one time in the year we worked out together that I had to tell him the same thing and he laughed and said "let's go")
I have to remind myself of these times so that I don't expect too much all the time.