[probablypower]

I'm not OP, but I can share how I did.

I needed to do some soul searching into my excuses for not running. I'd always think to myself, "I'd like to run, but I'm tired", despite having done nothing physical all week beside walking between the coffee machine and my desk, or getting into/out of my car, or walking the grocery isles.

I ended forcing myself to think of tiredness in a more granular way. If I feel tired, I classify it as either "mentally tired", "emotionally tired", or "physically tired". I realised I was quite often coming home from work mentally and emotionally tired, and using that as an excuse to do no physical exercise. I didn't "care" to run because my soul and mind were depleted. Then I recalled all I've known and read about physical exercise cleansing the mind and the soul (somewhat). So I started thinking of it as a way to solve mental and emotional exhaustion.

I promised myself to grind for a few weeks on the habit (IF: home from work & emotionally | mentally tired THEN: run 2-5km). It absolutely sucked for 2 weeks, as I was just adding physically tired to the pile (as I felt like a sack of shit afterwards and felt down on myself for being unfit). The 3rd week however started to feel a bit better, and from that point on I was starting to feel a net positive impact on my 'tiredness' after running. Once I hit that point it was a positively reinforcing habit that, literally, had legs.