What fitness lesson took you the longest to learn?

I've been training for a few years now, and the lesson that took me the longest to accept was that progress is usually much slower and much more consistent - than social media makes it seem.

I used to think I needed the perfect program, the perfect diet, and perfect motivation. In reality, most of my progress came from showing up regularly, even when workouts weren't amazing.

What's a fitness lesson that took you much longer to learn than it should have?