Shanis- Welcome to this great forum!
The first 3 weeks are the hardest- hands down!!!!! At that point I was saying: that I would NEVER do this again, OMG it hurts so much; plus I had the post-op blues (but did not know it then) and I had actually discontinued all meds (INSANE -do not try) for 3 days until I found this site!
Honestly, in addition to the skill of my excellent OS, I also attribute my stellar recovery to following the advice offered here at Bonesmart, which I followed heartily!
I was at 90 ROM when I left the hosp., had a cpm at home for 3 weeks and my home PT ladies were wonderful. They did not push, we just did gentle stuff at home for the first 3 weeks. OP PT was the same, I had a small extension issue and my PT guy said not to worry- it would work out- and it did. All without any PT pain or pushing or overdoing. Now I am at 0 and 128 and feel utterly wonderful!
AT 2 weeks, all you should be worrying about is nothing other than icing, elevating, pain meds, very gentle exercises. Everything in there is swollen and inflamed- and healing, so let it heal. Trying to get more ROM now will do more harm than good.
Don't be so hard on yourself- you can start to worry about the ROM much later, say in another month.
Happy Healing!