Ledkr - this time last week, I could have written your op.
I was absolutely terrified to be having a 4th cs.
The morning we went in, we had a chance to talk to the anaesthetist and the surgeon about it all. They were really reassuring, and if you don't mind a long post, I'll tell you what they told me!
The operation is trickier, but not necessarily riskier. The surgeon was confident enough to tell us that despite more scar tissue, it is still a routine operation, and that sometimes the scarring can help to prevent too much bleeding.
The anaesthetist explained that the first part of the op would take longer, as they would take their time to get to the baby. In our case, the previous cs's took about 5 mins to get the baby out. This time, it took 15 - 20 mins. After the baby was delivered, the op was normal from then on.
I was also told that recovery could take longer, due to the possibility of more scarring having to be removed. I've found this the easiest of the lot, and 6 days on, I feel almost back to normal.
The worst thing about this pregnancy was that so many people had words of doom for me about cs's. The midwife who was with me during the birth said that with a fourth, once you've got to the day of the operation, it's no more risky than a 2nd or 3rd section.
Sorry, all that seems quite jumbled up and probably doesn't make a lot of sense! But please don't worry, it'll be fine, and this time tomorrow you'll have a brand new baby snuggled up to you!
Good luck! Be thinking of you tomorrow (in a very non-MN way of course!)