It is ok that sometimes in depression we don't want happiness.The reason may that through getting happiness we will just get OVER EXCITED. So we should just try to be aware and try to look at our small activities like how we behave,how we look towards other,how we react and how we talk.But only by wanting these things we cannot beat the depression but we need to put it in our day to day life.And after accomplishing these things we will fill the sense of change,containment,calmness and peace in our mind,body and heart.At initial level it may be painful but reward on the other side is TREMENDOUS.And we always remember that FIGHTER always wins BUT with right understanding and with right tools.So fight till you WIN.ALL THE BEST.