@MaleGoddess
Currently, I've been doing mile-runs and timing myself. At first it was depressing to see how far I had fallen in the span of 15years. But drinking, smoking, fastfood,etc does that as well as ageing.

At the very least, I want to regain my 6min mile of ability I had in highschool. I've already seen progress and will be continuing to push myself at least until I regain that much.

As an adult, I have no excuse as to why I should let my current self be outdone by my past. I should be growing, not receding into infantile fatigue.