Hi mate - according to your post in my log - you should be waking up from surgery shortly?
My memories are a looonng first night (I had surgery at about 4pm, 3 hour procedure) but major improvements the next day so take all the morphine you can!
As you know, a long road awaits, but lots of milestones along the way to keep your focus and attention in the meantime. You will plug away for months and months and suddenly, like I've found over the past 3 weeks, suddenly a wall falls down and the progress curve shoots up. I honestly don't notice my leg anymore, and even a few weeks ago that seemed impossible.
Good luck mate, and DO YOUR REHAB HARD!