I'm a surrogate pregnant with triplets and I'm terrified of C-section

This isn't my first rodeo being a surrogate. I had a baby for my best friend and his husband 7 years ago. I also have my own kids. They decided they wanted one more child and instead they got triplets. My best friend turned white and dropped his phone. His has a little mental breakdown but his husband is a beautiful human being and said they can do it. I'm terrified because the doctor told me it would most likely be a C-section. I have 3 kids and had one baby for my friend. I've had 4 pregnancies and all pregnancies were vaginal. So I'm scared. I've never had a C-section. The thought of them cutting into me and taking the babies out terrifies me. We scheduled the C-section and the night before my best friend and his husband along with my niece are taking me out to a steak house. Getting cut open just sounds horrible and please tell me someone has some good C-section stories and some advice cause I'm scared.