Where is your surgeon?
I had mine done last July in Banff. I wasn't nervous at all. I had a great surgeon and she really put me at ease in my meetings with her. She knew what needed to be done just by pulling on my leg. My PT was great as well. They both prepared me for what was going to happen. I knew a lot of other people that had ACL replacements as well. They helped me a ton too.
I was told I should get a brace if I could afford it. Luckily my insurance paid for it, so I was only out of pocket until I filed my receipts. I wore it before surgery for support at work, and now I only wear it to play sports and ski. I don't have to wear it, but I keep it on as a reminder to myself to slow down a bit.
I was on hydrocodone and aceteminophine for pain. I wasn't allowed to use a cryo-cuff, because I was taking part in a study. The worst pain was due to the arthritis I am developing in my knee. It ached where they drilled holes in my bones. The drugs wouldn't touch the pain, so I just stopped taking them because I was scared of getting hooked on painkillers.
I had two major issues after surgery. The first was trouble sleeping. I couldn't sleep an entire night, then I would be sleepy during the day and need a nap. Then I couldn't sleep at night. And so on. The second, which contributed to the sleep issues was night sweats. I would spike a fever and sweat so heavily, I would wake up and have to change the sheets on my bed. Sometimes I got up and put dry sheets on three times a night. It was so bad that my pillows were soaked with sweat as well.
PT was rad. I met some cool people and some hot girls there. The harder you work, and the more time you put into physio, the better your recovery will be. And listen to your surgeon. If they say no skiing until January, no skiing until January. It will be worth it, they know what they're talking about.