NH,
Still here listening, empathizing, and encouraging you. Life is messy for most people, even those without PTSD.
Is your range of motion improving? When will they decide if you need more surgery or not?
If I could suggest one thing, it would be to ease up on the PTSD goals for now. The one exception being to be kind to yourself, since PT is messing with your current outlook on your PTSD progress. Just try hard to focus on healing your knee and in between PT just try to recover by managing the pain/resting your knee, relaxing with your babies, and treating yourself with something enjoyable for all your physical efforts.
The PTSD stuff is not going anywhere, sorry to say, so just try to lay off the harsh judgments and negative generalizations as much as you can. And if you need help with that, just ask.
Hugs,
Alex