Terrified of birth

This is my second pregnancy and im 36 weeks. All I can think about it birth. My first I was induced and was in labor for 23 hours. Im a nervous wreck to go into labor myself and my water break on its own. I ended up getting an epidural 11.5 hours in and just remembering the pain and feeling of not having the epidural is really making me freak out and worry. What can I do to calm my nerves and stop thinking about it?! Its all I think about every day. TIA!!!