Listen to these people posting here on your thread. Their advice is golden. I can only speak from the perspective of my own situation, but GAL and PMA are two anacronyms you want to tattoo on your hand so that you will be constantly reminded of them.
Yes, our situation hurts....hurts badly....perhaps even worse than anything else we may have experienced before. But it "is what it is" as the saying goes. That does not mean that you have to LIKE it or AGREE with it...but you DO have to accept what you have been dealt.
Another thing that i keep saying over and overt in my head is detach....detach....detach.... It seems to help keep me mindful and present (and so, less emotional).
I hope you feel better real soon.
Me: 49 W: 47 M: 19 T: 25 Son:19 Dau:13 Son:6 BD: Aug: 2012 Separated - same house: May, 2013 Ultimatum to move out: Dec 2013 W looking to move out: January 2014 Dau says go, I move out: June 2014