I don't know exactly how you feel, your right, but i have a pretty good idea.. I don't see the purpose in day to day life either. It's intolerable, irritating, pointless, and it seems like a rut sometimes. I barely sleep which is worse bc it leaves me with my thoughts.. which are not helping whatsoever. But your not alone in this ride downwards. That job could help you keep your mind off things, give you something to focus on, it could do some good.