VBAC/TOLAC

Hi! So I had an “elective” cesarean with my daughter in 2014. I was told she was too big, however she came out 8lb9oz. She was “measuring” 11lbs. My Doctor said I was not capable of a vaginal birth. Flash forward to today, I’m currently 12 weeks pregnant and new Doctor says I’m the perfect candidate and should have no issue. I am attempting a VBAC but need to know what I can and should refuse. What questions to ask at my Dr’s appts and best ways to prepare for this. It’s been 5 years and I feel like I can do this. Any help would be appreciated!