I still feel happier after exercise. Running a mile or two always making me an optimist for a couple hours afterwards.

I actually remember the first time I took it, I was euphoric for like 24 hours. It was as if all of the sudden I felt like I had control over my life.

I used to freak out over deadlines and staying late at work, and even if mentally I told myself not to worry about it I'd get visible anxiety symptoms like pressured speech and shaking.

On TRT those anxiety symptoms are significantly diminished. I don't freak out over things that aren't life threatening much anymore. It's like my body's response system to danger had it's threshold increased.

I think it's potentially the same thing. I noticed some years ago that I exhibited some of the symptoms of low testosterone but blood tests showed that I was low but still 'normal' so no TRT required. I made an effort to improve my natural Testosterone, lifting (particularly compound lifts like squats, deadlifts), more sleep, dealing with stress better, eating more fat and protein and getting more sun. I definitely feel happier, and that could be not related to T levels as I've not retested but it appears to be linked for me. I know it's a trope, but all men should lift (bro).