2nd Colopscopy next week

So i had my first lletz December 2021. I had my follow up smear and they have found I am HPV positive again as well as having moderate cell changes again. I am booked in for another coloscopy next week.
I have incredibly emotional…we were hoping to start trying for a baby later this year which we can no longer do until i get a clear result.
Why do the abnormalities come back…Will they do the letz treatment again?