Hi
First, congratulations on successful surgery! Woohoo!
As for the moods: I echo what everyone else has said. For the first 4-5 months I could feel ecstatic and strong in the morning and weepy and depressed by noon...then somewhere in the middle by evening. In those first weeks, the pain meds and your body's depleted resources don't leave much reserve for buoying up those scared, nervous, or just plain tired thoughts. Then as the months begin to pass comes the conviction (always false) that somehow your own recovery is "behind the curve" when really, the curve is individual to each person. I had many days where I'd post my progress on Bonesmart, then see a post by someone who could walk a mile at 3 months when I could limp to the mailbox and back - instant depression.
In the long view, all will be well. I am 8 months out and am not Wonder Woman. I still ice occasionally; my knees are strong but not fully healed. STILL. I am living life much more fully now than I was a year ago, and I *can* walk that mile, even if it took me a little longer to get to that point.
One of the biggest struggles of BTKR for many of us is to not mentally "push" our own recovery.
Take care!
j