great advice in general. Has this been shown to increase testosterone? Maybe through better mental health which leads to better overall health?
Regarding testosterone supplements, a good place to start reading is here: Amateur Doping real problem? - Racing - TrainerRoad
But to me it doesn’t sound like you are talking about anything illegal.
I am about to get my T levels checked as well. Not because I think I have any issues but it is an available test, I am 43, and I have been training hard lately. I am wondering what my body is doing at the hormonal level.