I think the advice given by some of the ladies already is spot on. Do read up on all the possibilities so you're prepared for whatever is thrown at you. It is all down to luck really and it's not really anything you can control, so like others have said, don't be too hard on yourself if it doesn't go to plan.
I'll be honest with my first baby I had the perfect pregnancy and awful labour. I won't go into the details cos this isn't what this thread is about. What I will say though is you will surprise yourself with what you're capable of doing to get your baby out safely. I think the combination of drugs and adrenaline also helps get you through it and kind of forget about it afterwards!
My labour wasn't enough to put me off having another and it was perfect and straightforward birth (can't say that about the pregnancy!). But it was an elective c-section second time around. Just wanted to reassure you that not all csections are terrible.