Remember it. Remember the pain.
Put the knife back into the wound.
Reopen it, don't let it heal. Don't you dare let it become a scar.
Jump from that cliff and never climb again.
Up there is not where you belong.

Don't you ever forget.
Bring back every detail you can from it, extract every bit of anger you can from that.
Dribble with rage.
Embrace it and never let go.