Patella Tendon Surgery

I ruptured both of my patella tendons a year ago on April 15th.
I had to have emergency surgery on both knees.
I went through some physical therapy for aabout 8 weeks at home after being in a rehab center for 2 weeks.
I am still having pain. Can you please tell me some excercises that I can do to help strengthen the patella tendons.
How long is the healing time?
Will my legs ever feel normal again.