It's ok to let yourself emote and let it all hang out. It's part of letting it blow on through. It does suck. But if you have to go through some short term UGH to get to your long term best health -- so be it.
You can pick a date. At some point further down. On THIS date? I will choose to do THIS to help me let go.
Spew all the emotion into a letter and burn it, bury it, whatever.
Find an appropriate way to dump cargo you no longer need.
Hang in there.