"Perfection doesn’t exist. Measure your progress against where you used to be, NOT the perfect ideal."
Too many people get wrapped up in comparing themselves to other people. Especially in the gym!
"oh he/she is stronger, skinnier, more toned, faster..etc"
Or even comparing yourself to some celebrity in a magazine. Trying to live up to the celeb world of ideal is only going to end up in failure and frustration. And besides, most images you see in a magazine are photo shopped and airbrushed.
Its all a bunch of BS. Compare yourself to yourself. Where did you start? Where are you now?
Don't worry about what someone else is doing or worry about being perfect.
Just be you.