E - So sorry! We all know how you feel and have been there. It does suck. Use that anger as a shield. Try to do something, anything that will help you get your mind off of it - go for a run, whatever. It really does get easier. Truly. It is a process and so is detaching.
We all do understand. It isn't fair. It isn't what we asked for. But it is what is, unfortunately. Vent here all you want. Try to do something to get your mind off of it.