I Have Been Told I Have Endo And Will Need

i have been told i have endo and will need a laparoscopy to have a better look etc... my consultant also wants to insert an IUD coil as she cannot put me on the pill die to other health problems. I'm terrified right now.
I have horse and i generally will be to scared to ride again in fear i'll catch the device or move it and it will do something bad like embed itself. My friend also got really heavy bleeding with her one and i am heavy enough as it is!!! Also how can this NOT damage your cervix if you have not had a child?
Cancer also runs in my family with every single woman having had either breast, cervix or ovarian cancer and the youngest died at just 24 which is my age. I've read online this IUD would be a bad idea because of that. Also i cannot get bad acne it would ruin my life, my self esteem is low enough and i would not be able to cope if my skin got really bad.
Plus how will they get that out, there is no way my cervix will stretch again i will be so badly tense anyway. I cannot go on my period either because i will be too self conscious and would spend my entire time crying then make the doctors leave the room and let ME clean up...
They would put it in under general so i will not feel the initial pain just the agony and terrible bleeding after. I just don't know what to do, to me there seems to be too many negatives