It sounds really cliche and annoying, but do everthing the doctor tells you! I had a complete ACL tear and meniscus tear. Had two surgeries on my knee, one to fix my meniscus the other to graph a piece of my hamstring on to my ACL to make me a new one. I jumped back into sports to soon cause I "couldn't wait", now I could have fucked up this season for skiing. Since I live in Ontario, wait lines for surgery is forver, so I'm on the waiting list to get my meniscus fixed/removed asap. What I'm trying to say is your doctor knows what he's talking about. He's gone to 8+ years of university, and probably has a better idea of what's good for you knee and what's not. So wait your 6 months and don't fuck up your knee for next season as well. Ohh, and do your physio! Getting your muscle back is a huge one to! Best of luck with your recovery.