I don't have a single photo of me before eighteen.

I was too ashamed to take any, and I got rid of the few that existed. I'd give a lot to have them now. They'd make the point better than anything I could write. On my sixteenth birthday I walked into a gym in Spain with no idea what I was doing, soft and insecure and sick of it, and I did exactly what the magazines said. Chest day, back day, arm day. Most of it was probably wrong. But I kept turning up, and turning up was enough. Within a couple of years the insecurity was mostly gone.

And then something strange happened. I didn't stop.

// The mirror years

The body was fixed, but the gym had become bigger than how I looked. So I did what everyone does and doubled down on bodybuilding. More splits, more isolation, chasing the pump. I got more muscular. People noticed. And I still couldn't do a proper pull-up. My whole mood for the day rode on my reflection. I'd built a body that looked capable and wasn't.

// The turn

The shift came from YouTube, of all places. Street workout guys doing muscle-ups and front levers, things that looked impossible. And here's what got me: they looked better than any fitness model I'd been copying, and they clearly weren't training for it. So I threw out the split. Weighted pull-ups, dips, squats. Six months of that built more than three years of bodybuilding had, and I've never trained for the mirror since.

They were just strong. The look came free.

After that I chased capability wherever I found it. Martial arts, gymnastics, olympic lifting, handstands, whatever the people I admired could do. For the first time, training was something I actually looked forward to. And it stuck, for over a decade, through university and jobs and moving through five countries. I never fell out of shape once.

// Breaking, and learning

The one time it went badly wrong was at twenty-five. I got impatient, loaded too much weight, ignored the warning signs, and wrecked a few joints I still manage today. I knew better. Ego just won. But that injury turned out to be the most important thing that happened to me, because it forced the lesson I'd spent years dodging.

You can't rush a natural body. Train for seventy, not for next summer.

The moment I stopped forcing it, everything got better. Slower, but better.

// Where it left me

I think the reason any of this stuck is that I approach my body the way I approach everything else. I was diagnosed with ADHD as a teenager, skipped the medication, and learned to work with my own wiring instead. I later taught myself engineering, then programming, the same way I'd taught myself the gym: pick a goal, learn how it works, practice, adjust. The body was the first hard thing I ever figured out, and figuring it out gave me the nerve for the rest. Finishing the degree. Leaving a steady job at Volvo. Building my own company.

Today I'm thirty. I live in Dubai, I run a software studio, and I stay strong on three or four hours a week without it running my life. I can do things now I'd have thought impossible at twenty. But that was never the goal. It was the byproduct.

And that's really why I'm writing all of this down. I'm not special. I was a chubby, insecure sixteen-year-old with no clue what he was doing. Everything good in my life traces back to the day I decided to get capable instead of just look it. I've spent fifteen years finding the shortest honest path there, and I'm putting the whole thing in one place, for you.

Guillermo