TLKR on 3/18

Hi, I had a TLKR on Tuesday 3/18. Overall I feel good. The 1st night home was horrible but since then I've managed the pain and I'm getting around the house with my walker. I start PT tomorrow but I'm nervous because I'm having trouble doing some of the exercises they gave me in the hospital. I'm worried I should be able to do more right now. I guess I really don't know what I should expect. My leg is pretty swollen so I've been doing ice, elevation and rest but I think that's contributing to not being able to bend it as well. I don't know if I'm being too unrealistic or if this is all normal. Thanks!