I'm sorry you are dealing with this. I don't have endometriosis so don't really have much to offer. However, I do know of women who have had endo removed as well as women who've had polyps and ovarian cysts removed. If you are having it done laparoscopically and aren't having any organs removed (uterus, ovary or ovaries or tubes) then I would think the recovery shouldn't be too difficult or lengthy.
I hope all goes well! Please post back and let us know how it went and how you are doing.