Sometimes you have to focus on small things that do make you happy when everything else turns to absolute crap in life. Finding a new purpose can be hard, I've done before and I still struggle with it. But if you don't give yourself a reason to keep on going, you most likely won't. You'll develop multiple health problems along with depression an just give up.
Reinvention in life is an absolute must at one point or another!
!BBH
!DOOK