I had mine ten years ago now ...doesn't time fly.
I had to have the worst kind of op...cut from stem to stern up and down the way...cannot remember what they call it. Anyway, I was off work for 4 months then went back half time for a month. To be honest I wished that I had had another month off as I felt so washed out by it. (By no means a physical job.)
As everyone else has said, everybody is different, take your time and listen to your body. (And do not be phased by these lucky people who got back to work the next day or whatever they say.)
Only you know how you feel and what you feel up to.
Try to walk abut a wee bit more each day, but gently gently.
Good luck. It will come right in the end, but it is a big procedure.