It's 18 years since I had this op. I was in hospital 5 days afterwards and went home feeling fine but tiring very quickly. For several weeks I had good days and bad days but felt well enough to drive myself to the hospital for my post-op check-up, 6 weeks later. I went back to work 8 weeks after the op, doing 4 hours a day for 2 weeks, then 5 hours for 2 weeks, then 6 hours for another 2 weeks before I went back full time.
My only advice is - take each day as it comes, do exactly what the medical staff have told you, rest as much as you can and never refuse any offer of help while you're convalescing. Just like me, you'll have the Summer to recover in and, with any luck, it won't pee down every day for the next couple of months.
Best wishes.