Meniscus surgery reg. Give an consult!

Hello doctor..i done an arthoscopy meniscus repair on my right knee..it was bucket handle tear  repaired with Fibre wire. its been 8 weeks of surgery..i am doing knee strengthening exercises quadriceps exercises... after 60 days of surgey I tried to climb stairs...while i tried to climb with my right leg which of operated.,i feel heavy stiffness with high strain on operated leg..i tried to climb 10 steps i feel heavy stiffness on knee with pain..so i keep my left good leg first to claim and then right..and while getting down the stairs i keep right leg first and then left...my query is even 60 days why can't i able to keep my right leg first to claimb...whether my meniscus will completely heal... I am worrying about whether my meniscus will tear again.. kindly give an consult