Well looks like you have 2 problems, A the driveway and B the back.

The drive way i would pay a neighbor or get a attachment for the lawnmower or ATV is what I use ( more fun, but pricey)

I would see a doc on the back to see what the issue is and then go about a fix! time off from lifts for a back is what I always recommend !!

I recently just ran into my first back problem and it was from going to heavy my back rounded over a hair to much in my squat, this is why form is key and weight is last! getting older i am finding it better to stay lighter than going big.

Get some pics taken brother and find the issue first!! backs are no joke!