Broke my tibia at Brechfa in 2009. 3 months non weight bearing then physio for another 3. Back on the bike (very gently) after about 5 months. The main problem was muscle wasting after being on crutches but that comes back quite quickly. Walked with a limp for about another 2 months, but that eventually went.
My only advice is do everything, and I mean everything the physio tells you to do to the letter. It can seem like a pain doing all the exercises but they really do work. I guess it was a year before I felt I was back to how I was before the accident. Oh and go back to where it happened and ride it again – helped me get my confidence back, however It’s not something I would ever want to go through again, so a lot more careful these days.