I have to agree, your PT is wrong about ankle weights. (My surgeon has a strict rule to never do any ankle weights after a TKR. But that is his rule, and I happen to follow it as his patient.) I do understand how its confusing to hear so many different opinions / idea's. Even in a PT clinic different people will do things differently. As I stated, you have to decide if your going to follow your PT's advice or BoneSmart. The two don't work together - that's where you get conflicting advice. I do think you need to realize this was a major surgery and it takes time to heal. We are all inpatient and want to feel better, do more things, etc., but alas in due time you will.
I certainly don't mean to sound so blunt, I just want you to realize your trying to mingle two different healing methods together and your getting frustrated. Take a couple of days and do no PT - just ice elevate. Take a step back, so to speak and just chill as much as possible. You know your body and what will work for you - no one else does. Hang in there, it just takes time. (And I know your tired of hearing that.)