Another thought on being content.. Interpersonal relationships is one main area where being content is a super important trait to have. Sadly, many of us lack it when it comes to relations.
In my experience, I see that no matter how many ever friends I might have, if someone's friendship is what I cannot have, then that is what I'll seek. I can never be content until I have made her/him a friend too. Unfortunately, in the process I may upset a few apple carts, but I plough through, nothing deterred.
People, it doesn't matter if we have a hundred birds in hand, it's always the two in the bush that attract the eye!