Torn meniscus

I fell last week and went to the doctor the next day. He said by the was it was swollen it looked like a torn meniscus and scheduled me an appointment with orthopedics. I haven’t gone yet but has anyone ever torn a meniscus? If so how long did it take you to start walking? I’m still on crutches after a week. There isn’t any pain but my leg feels too weak to walk and I don’t have much range or motion. Not sure if it’s from over use of the cast or what but I can’t put my knee straight or bend it all the way. It’s stuck in the middle. Do you guys have any tips on excercises I could do? Or how long it takes usually to start walking without surgery?