Wasn't so long ago that I was also playing the waiting game and I can totally relate to the frustration you're feeling. Everyone had convinced me I was going to have my baby early (because I'm petite and my belly didn't seem like it go grow any further - stupid reasoning but I swallowed their logic hook-line-and-sinker!) Plus my mother laboured at 36 weeks with her first, and my sisters' first came at 37 weeks too. In my head, 'full-term' for me would be 37 weeks so as soon as I hit that milestone I was convinced labour was hours away from starting.
Anyway, I got to 38 weeks and felt thoroughly disappointed to still be pregnant. Then 39 weeks passed and I thought surely this week is the one - we filled the car with fuel we were so convinced. I even had a 'bloody show' and a night of vomiting - google told me labour was imminent, my doctor friends said 1 more week max.
40 weeks came. Still pregnant. Fed up, I wanted me and my husband to have time with the baby together before the in-laws visited (they were coming for 4 weeks the next day.) I pleaded with this baby to get it's act together and come that night... No such luck - 41 weeks... Now I was worried baby was never coming on it's own terms, I was staying pregnant forever. Eventually we went to see the doctor, because I was over 40 weeks we discussed my options (I gave birth in South Africa so this is likely different to what you've been offered)... I wanted a natural birth, I'd done so much reading and research - more than anything I wanted to experience labour and push the baby out myself! They talked about a c-section but I wasn't happy. Instead I was booked in for an induction in 5 days time (still not happy about this because I'd also read how any medical intervention in labour is likely to lead to more) but I did feel some joy that in 5 days time I would not be pregnant anymore, or at least on my way to not being pregnant anymore!!
Two days went by, I'd resigned myself to the fact that this baby was coming out only with medical help. I took some time with my husband (and the visiting family) to enjoy the last few days of zero responsibilities. And we did enjoy them, I had some great days at the beach, I threw myself into the ocean and played like a dolphin in the big waves (much to the horror of everyone else on the beach!)... At the same time I mentally prepared myself for the induction, so much so, that when labour started on it's own accord I was genuinely surprised!
I would happily write my whole birth story if it served to distract you from waiting for your baby to appear, but maybe I have waffled for far too long already!!
Depending on your team at the hospital, I think most places are happy to let you get to 42 weeks without intervention - if you are really keen on a natural birth you should discuss this with them. Maybe instead of cancelling your c-section you could see if you can postpone it? Therefore giving your body (and baby) more time to do it 'naturally'...
That said, if you want to postpone it and wait, patience is key! You aren't even 'full-term' yet (40 weeks, and in France full term is considered 41 weeks!) Believe me, I know how soul destroying the wait can be, and how annoying it is when people say 'they'll come when they are ready' - but that is so true. I am glad now that my baby came 9 days late. He was stronger for it, for sure! That said I was one of the lucky ones that had a quick labour, I can't imagine having early labour contractions for days That must really be wearing you down and having patience must be so much harder for you, so I do really feel for you.
Try your best to enjoy the last few days/weeks without a newborn. As you know, it's so hectic when they do arrive. What you'd give then for a moment to yourself! Read a good book (I highly recommend 'The Good Birth Companion' by Nicole Croft if you do want a pep-talk for natural birth), go for a walk, nap away (while you can) or have a nice bath.
Plently of women do VBAC (vaginal birth after caesarean) so it is possible (if your medical team are supportive of this). But at the end of the day, once your baby arrives, how they got there feels a lot less relevant. Just because I got a vaginal birth it doesn't make me a success, so I c-section can't possibly make you a failure. The true measure of success and failure comes long after labour and delivery
Best wishes and good luck, sorry for the waffle but as I said, if you read all this maybe the distraction is appreciated haha! xxxx