Pam,
While I'm not a House alumnus, I can tell you that you are in good hands there. I've heard nothing but positive things about House. As for as expectations post-op, they vary wildly however generally the first 3 days don't count, but you'll need (on average) 4-6 weeks of recovery time before you start doing a lot of "normal" stuff (like going back to work). Some recover quicker than others, but you'll know by listening to your body. I saw Steve post a good timeline recently about what generally happens when. Something about after two weeks (if memory serves) feeling good and trying to do something normal and you get slammed back to the mat by your body. Generally speaking, rest, rest, and more rest.
My story of surgery in May is below (in my signature). You're welcome to read about my ups and downs both before surgery and after. It will tell you what to expect, at least in my situation, after surgery. Admittedly, I didn't want to do much for 4-6 weeks after surgery except sleep and watch TV, but part of that was the allergic reaction I had to some drugs I was on.
Welcome to the forum. It's perfectly normal to be scared. You've come to the right place for information.
Regards,
Brian