I'm another success story I guess. I had 3 laps to get rid of my endo. My periods had totally stopped (I also have PCOS). The first surgeon looked inside, said she wasn't touching me, sent me to a specialist. He looked inside, said he wasn't touching me, put me on meds for 6 months, then I had the 3rd lap and they cut it all out. My insides were bound together basically, they said it was stage 4 and they took away half my left ovary as it was damaged. I wasn't ttc at the time so went on the pill for years to 'protect me', and when it was time ttc, we fell pg in 3 months, despite being told we would need IVF. Then we fell again (unplanned but very welcome) when dd1 was 9mo.
I hope that gives you some hope, as i was apparently a hopeless case. I totally agree with what others have said re diet etc, i would highly recommend looking into that for yourself. The food you eat becomes the cells of your body.
My tips - ask about Poly Cystic Ovaries, as they often go hand in hand. And re pain after the op, the worst for me was pain in my shoulders (the gas they use to expand your abdomen travels to your shoulders for some bizarre reason). It passes within 24 hours though.
hth good luck on your journey