Set Backs or just back in general

I tried pushing the demo too quickly. Went up the week after 4 of July. My body was still pretty soar from the week before. I ended up trying to move a cast iron, wood burning stove. It was just too heavy for my back. Ended up with a strain, and no work done. Took two hours to load my truck back up and go home battered and bruised.
Here's the evil stove. I guess it will be there for the remainder of the project.