Would you rather do something because you think it has value or live with the harsh truth that what your doing is nonsense? Sometimes giving it up means losing that value you thought was there. If so, you would have to find value in other things and other activities. It might even be possible to engage in those activities for different reasons and retain the value that derives from them. If one gives up religion they give up a set a way of life and the consequences of that should not to be taken lightly.