I had CIN111 with traces of 1st stage of cancer 10 years ago at age 38. I wanted the hysterectomy as had well and truly finished having my children and saw it as a relatively easy way out.....(no more periods etc) , however OB/GYN advised against it saying with regular monitoring it really was a matter of subjecting your body to something that wasn't necessary. I had the cold knife excision and some form of burning...(sorry not sure). 3 monthly, 6 monthly and now yearly pap smears and still trouble free.
If I got a reoccurrence then I would definitely push for the hysterectomy but in hind sight the doctor knew exactly what he was about.
Good luck and I know it easy to say, but try not to over stress. It is very treatable whichever way you go and sounds like you have caught it early enough.