Comparison is the thief of joy. -Theodore Roosevelt

//
It is in human nature to compare. We compare to gauge ourselves, to judge others, to find a foothold that we have in the situation that we 're in. It's hard to compare. It's almost an instinct for us to do so.

As a result of comparison, we may get jealous/envious/upset if we're less fortunate than others. That robs us of our joy. Even if we did emerge 'better' after our comparison than the people that we compared ourselves to, this 'joy' is perhaps superficial, and robs us of the true 'joy', that we can achieve.

We just need to be contented with what we have; be thankful for what we have.

While we cannot stop comparing (it's just silly to force ourselves not to do/berate ourselves whenever we compare), I guess the awareness that you're comparing will make everything fine. As long as you're aware that you're comparing, that's all that matters.