C-sec or Normal Delivery

Dear Mummy's, need your advise please. on my previous pregnancy i delivered my baby girl by C-sec due to breech baby position in July2016, now almost 4 years i had another one which is coming on April 2020. This time round my baby position is normal and his head is going down and according to the doctor at KKH its good to try VBAC. But, i have a bit worried to go through VBAC. I don't want later end up emergency C-Sec. Any mummy have experience in VBAC? Advise please thank you.