Totally normal to be scared and stressed. BUT try to think about what it will entail and the (many) positives to the situation.
*You know when it is, so your children will be cared for and there won't be any last-minute panic
*It is being done for your safety, and the safety of your baby
*It won't hurt (massive plus!)
*No tearing - weeing isn't a problem after!
*No fear of last-minute surgery, forceps etc.
*Baby won't come out looking all squished!
I'm always a bit
when people suggest this, but Rescue Remedy maybe? OR at least a nice cup of tea, and a chat with DP/good friend/Mum etc.
When you do in, tell them how anxious you are. In my experience, doctors, anaesthetists and midwives who deal with CS are amazing, really the best you can have for being practical and sympathetic to your needs.
Good luck, try not to worry, and remember it is a truly amazing thing that you can have this surgery so that you don't have to risk your health or that of your baby. :)