Even with the "all cases are different" blah-blah, Stork is probably right. I was 51 when I blew up my ACL, a few years ago. I had a cadaver replacement, so it helped a little in the recovery time. Surgery was in mid-November, non-home PT started about 30 days after surgery, 2-3x/week until May. I did get not get back on the field until after the 4th of July and did not "run" the bases until fall ball in September. Take as much PT as your insurance will cover or you can afford. Push but be methodical not crazy. You may think only your knee or even the injured leg needs rehab, but it is amazing how quickly things can get out of synch. Take care of yourself, no one else will