Bugger. I sympathise.
Had my ACL rebuilt in '94 following a skiing accident. I tentatively returned to skiing about three or four years later expecting it to be my swansong.
Cautiously approached the first run and got 100 yards before being wiped out by one of our party (and really, she should have known better). Picked myself up, dusted myself down, popped the skis back on and carried on. It was only a few minutes later that I realised i hadn't once thought about my knee.
Never looked back. Have skied every year since (without ever once being worried about my knee), discovered cyclo-commuting (and thence yacf), continued sailing, etc etc.
You'll be reet.
ETA And, needless to say, techniques have moved on a bit since then. The chap who did mine pioneered the process, and when accompanying mini-hatler to see a knee doctor about four years ago he spotted my scar and commented something along the lines of
Doc: Oh, we don't do it like that any more. We've made massive improvements since Mr Dandy at Addenbrookes worked out how to do this.
Me: Yup, he's the chap who fixed my knee.
Doc: What ?? That's a Dandy original ? I'll have to tell my colleagues.
Who'd have thought I had a collector's item in me ?