Be happy and rejoice in everyone's success. Jealously makes your bum look big.
I am guilty so often of thinking that someone else's success will take away from mine, that somehow there is a shared pot of success which gets doled out. And yet, the more success we have, the more generous we are with our time and energy, the more success we all have. And yes, jealously is a nasty, energy sapping emotion.
And if that wasn't enough, my post birth bum does NOT need to be any bigger :-)