Life is like going into an international buffet restaurant with only one plate and one round to take everything you want.
There are so much yummy food around but the plate has limited space, just as how we have unlimited wants in life but limited time. You have to take the food you really like, just like you have to do the things that really matter, things that add meaning to your life and makes you happy.
Once you are done with your selection, you look into someone's plate and wish that you could have grab that tasty delicacy that was not on your plate. That act of comparison will make you envious and unhappy, because the comparison will never end. Some others will look into your plate and wish that they have something you have and they don't. Let's just be happy and thankful with we have on our own plates and don't compare with others.
Finally, there will be some who are unable to go into the restaurant and they will go hungry. However, there will be people who are big hearted enough to share some of what they have on their plate, to spread some joy and hope around, to fill stomachs and to warm hearts. Someday, the underprivileged and hungry or their children will be able to go into the restaurant to enjoy a good meal, all thanks to those who care to help them along.
To sum things up about Life with this analogy, do the things that are worth your time, don't compare with others and always be kind. You will find happiness and meaning when you do that.
Wishing all a great weekend ahead :)