So sorry!! You have every right to feel the way you do. I wish I had more words of encouragement but just know that I am feeling very much the way you are and it does feel hard to move forward. I think you're right, you do need the time to grieve. It's expected. Surround yourself with people that love and support you. Hopefully we can all see the light at the end of the tunnel... sooner, rather than later.
Take care of yourself!
Me: 32 H: 32 M 9 yrs #1 D7 #2 S5 #3 D2 Bomb 8/12/11 H moved out 8/14/11 PA started w/H & OW in 1/12 - found out 3/24/12 Got my own place 8/25/12 H & OW move in together 9/15/12 Still married.