Know that you are having a bad day, so I hope feeling from a wayward is ok. I am going to assume its ok, since you are in General Forum.
Its ok to have a bad day. Your life sucks right now, and feeling bad feelings is a step toward better times. A step we would all love to skip, but alas we can not.
Remind yourself that you did nothing wrong, nothing that deserved this. Life stinks this way because people are flawed, broken, and short-sighted.
Give yourself a break. Don't be critical of your actions before the A or of your grieving process right now.
Grab some tea, take a bath, a few benedryl and SLEEP.
Wake up, shower, look at the sunshine, and put your right foot forward, then your left.
Its ok to be sad and angry. Give yourself permission. Love yourself on bad days.