Hiya, don't despair, 16 days is nothing. I used to get very frustrated with my second knee, but when I looked back at my posts for the first I was actually doing quite well, and of course they will both heal in totally different ways, so we can't really compare them.
Don't worry about the bend, it will come, but it will take time, sorry, but you just need to relax and have patience.
I don't know about you, but the second time round I didnt get any where near as many visitors, it was close to Christmas so everyone was busy, I wasn't at work, so ex colleagues weren't as aware of my op and generally I think people thought 'she's been through it all before, she doesn't need us this time'. I know I was very bored.
Good luck, sending hugs xx