Supposed to give birth March 7 and terrified. Need some support and advice.

I’ve always been afraid of having a baby and now the time is getting closer and i am terrified. I am terrified of the pain and of the uncertainty of the birth.

I am very sensitive to pain and was wondering when it’s best to get the epidural, at what dilation?

Also any advice on how to relax:( I keep worrying something will go wrong:(