Tibial Plateau Fractures - recovery questions

Hi, I relatively recently suffered a tibial fracture after a collision with a stationary car on my push bike, the fracture required surgery and afterwards I was put in a full leg cast and kept in hospital for 2 weeks before I was allowed to be mobile on a frame and sent home. My hinged cast was set to allow a greater range of motion every 2 weeks in the end it was set to 60 degrees and I am now 7 weeks after my operation and the cast has been with replaced with a Velcro brace last week after my xrays were promising. I read about other peoples experiences with similar injuries and by now people are talking about a range of motion beyond 90 degrees and climbing while I have been neither offered any physiotherapy and cannot achieve anything beyond 50 degrees with my knee without not so much pain as a sudden stop. I can't physically force my leg any further. So my question is, is this normal or is it something I should be seeking help with because while I broke my leg 7 weeks ago the competition season for ballroom and latin dancing for me starts in November and ideally I want some form of movement (if only to train with a partner) by this point. Is there anything I can be doing to try and regain some range of motion?

I am 23 and male (if that matters) have been NWB for 7 weeks and have one week left before PWB for the last 4 weeks where my doctor has adviced applying up to 50% body weight.

Advice is very appreciated
Matthew

p.s. I am well aware I am unlikely to be fit for the competition season but it's a goal more than anything realistic.

1. Not all doctors use physical therapy. Not knowing the specifics of your surgery, I think PT for ROM would
   be indicated. Your doctor wants your bones to heal &does not want undue stress. He/She must have a therapist they trust to do just what they want

I would also add that you are only at 7 weeks. The normal healing time is 12 weeks. The tibial plateau is quite an important surface so it is important to allow proper healing. An advantage for you is your age so even though you are restricted in flexion at the moment it can return quite quickly.