C section... SCARED

I'm 35+5 and had my 36 week appointment today. My OB says baby is breech and that he is very large, he scheduled me for an ultrasound to see just how big he is and he has also going to have me come in twice a week for him to monitor baby. He told me that i may have to have a c section because of the size of baby and if he is breech. I made the mistake and googled things on c sections and I am very scared, any advice from anyone having or has has a c section would be greatly appreciated!