Did you know that your brain never devotes more than 0.5% of its power to important things like finding food, avoiding predators, thinking, perceiving, and feeling? And that this is because you're always bloody using the other 99.5% for comparing yourself unfavourably to other people?  Admittedly, I just made that up - but you do spend far too much time and energy on comparison. You know you shouldn't, because it makes you feel bad. But there's another, seldom-recognised reason to avoid comparing yourself to others: comparison is a completely inadequate and very biased tool for self-evaluation.