lateral mensicus trouble post operation

hey me names dylan im 15 years old and having a problem with my surgically repaired lateral meniscus. I had the operation to repair the meniscus on october 22nd last year (its 10th April today) and still isnt 100%. I keep experiencing swelling in the knee and the back of the knee tightens up. It feels like my meniscus has been torn again but i havent done anything that vigorous for that to be so. I play rugby league but havent since the injury last year. I want to get back on the field and playing but these swellings and setbacks with my knee arent doing that much help. The swellings arent just a thing where it like only swells for a couple days and goes away neither, the swellin lasts 4 at least 2 weeks. The swelling this time around is still swolen which started 2 weeks ago. Ive done everything my doctor has told me, everything my physio has told me... So all i want to know:

• Do u think ive retorn the meniscus?
• How do i keep the swelling down?
• How long till i can get back on the field?

thanks...