LB See where your knee was handled very well. I remember the stepper challenge very well. I remember the other standard from home PT - I could drive when I could demonstrate I could into and out of the car.
Extra practice and higher (?) standards since my raised ranch, two levels, had two flights of stairs; one 7 steps, one 6 steps. Keep up their caveats! You know the routine, it should be a walk (climb) in the park.
Remember, too, to take yourself seriously. You need and deserve the best for all you've been handling. Family help definitely appreciated and needed. Prayers and hugs for you always.
P