Candy making in Dutch Oven when there is only one of you
One option is to put the dutch oven on top of something next to your cooling pan then tip it on it's side, still on top, and scrape it from there.  You could probably use an upside down pot or tray, depending on the size of what you have.  This way you won't be holding the weight of the dutch oven so much as just keeping it from rolling side to side.