When to get a lap?

I've had endo symptoms since I started menstrating, and all the women in my family end up getting a hysterectomy due to endo. I've been to quite a few doctors, nothing is working, and now it seems like my only option is to get a lap. I'm terrified of having surgery and being put under (I'm very very sensitive to meds). I'm just not sure how long I should wait to get one. How did your symptoms change after the surgery? Any experience, tips, and advice would be appreciated.