Welcome to recovery! Take it one day at a time, and keep us posted.
I agree with Celle about the heel rest-keeping your heel on it to keep your knee straight may be too painful and, IMHO, unnecessary. But, if it doesn't hurt and you think it helps, then keep using it.
I found keeping my knee iced and elevated whenever I wasn't taking short walks around the house, was much more helpful in recovery and with reducing pain. I iced for hours each day, making sure to keep a cloth between my skin and the ice machine wrap, plus I iced all night long every night. That kept my pain down, and since I can't take any pain meds at all, it was a life saver.