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No matter how wealthy you are or becoming, you can't be satisfy, money can't give you satisfaction, we humans are like grave, grave can never say he is satisfied, grave is always open to receive death bodies, things can't give one satisfaction.
True satisfaction comes when you are on your vision for life, it's your vision that multivate you to want to live, when you stop working you start dying, through vision gives you drive and that drives give you life, it makes you want to live, I once had of a story that changes my mentality, a man was on his dying bed and he was given the number of days that he have before he died, the man remember his family he said to himself, if I died who will take care of my family? That was the end of his sickness, he refused to die and he rise up from that bed healthy.
True and lasting satisfaction comes only when one is on purpose, life is sweet and fun when you are living on purpose, a friend called me yesterday and was carrying saying that I told him something years ago but he neglected it, and now he has lost his peace, chesing after money can't give one satisfaction, your purpose is what you are designed to do on earth and no one can do it better than you, you can't be replaced, because there is no another you.
To be satisfied is to define your life purpose on earth, if you must avoid depressions then you must define your life purpose, your full potential is released when purpose is defined.
Thanks for your time