If you're in pretty good shape, you should feel back to normal and fully yourself in about 2 weeks. After a week you can manage but after 2 you should feel fine. Get help the first week, you'll be pretty sore, hard to walk around and carry baby
It's different for everyone, some woman find they heal quickly and don't experience to much pain. I had a lot of pain, and could barely take care of my son after he was born. They are cutting threw your skin, muscle and then an organ, it's gonna hurt for sure. Your gonna need quite a bit of help after, but as long as baby makes it here safe in the end that's all the matters. If you don't mind, why do they want you to have a scheduled csection decided so early in your pregnancy