Just a ramble... could you find a rewarding hobby. Let work be work, sometimes doing something to pay the bills and provide a life outside of work can be "enough". I've come to a point in my life where I like my career well enough but it doesn't fulfill me as a person so I'm trying to find a rewarding hobby or community service to add to my life.

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When you get to the end of your rope, tie a knot and swing.