((Calypso))
I am very sorry that you're in such pain and distress.

I know that it isn't easy news to get while you're trying to get through school. Kind of came like a slap in the face! Scary...I am sure.
I don't have an educated opinion on when the pre-cancerous cells popped up. As long as those cells are still pre-cancerous, that is wonderful and there are less intensive medical treatment options. You are in my thoughts ~ I hope that the excision of the cluster of cells goes nice and smoothly for you next week.
I don't know if it helps you feel any better, but I had the same procedure done many years ago. It was physically uncomfortable, and quite painful at times. My husband was there throughout and held my hand, distracting me from paying any attention to what the doctors were doing below. That helped me a lot
emotionally. I would recommend bringing someone with you, to do the same thing, if you can. The more relaxed your body stays, the easier it is for doctors to get it all. Breathe deeply, and slowly. Relax... Think pleasant thoughts... it will be over soon!
From there, tests are done quarterly for one year. As long as those tests come back "normal", tests move to bi-annual for another year, if still "normal" then go back to annual from that point.
Very gentle and warm hugs to you, Calypso.