Wow! Well, look on the bright side: you ave no more tibia plateaus to fracture. You got ’em all!
I like the whole idea of not worrying about something until you have something to worry about. Meaning: right now, today, your functioning knee is doing OK. Your brain has enough to deal with coping with the injury you are facing TODAY…don’t put it through the extra strain. Picture a big stop sign and just tell yourself to stop it and that TODAY the knee is OK…and you’ll deal with tomorrow’s problems when/if they happen.
That being said, practice your ROM exercises to keep things moving and not to let the knee get too stiff. Move with more intent and awareness: just don’t rush through movements and transfers so you don’t twist that knee because you are in a hurry.
I do wish you well.