Be grateful for what you already have, then you will be happy. If you concentrate on what you do not have, you will never feel enough.
I think humans never really feel enough. but we can be much more satisfied with ourselves if we try to increase the 'grateful level' to make ourselves happy, and limit ourselves to pursue more. Set realistic goal achievement only. for that alone can keep us from any disappointment and regret. Otherwise, we will only pursue the desire of illusion for more, but never reach satisfaction. We all have the option of being happy with what we have now and then. the secret of inner satisfaction is being able to be grateful, and able to come to terms with desire which is the source of self-discontent .