I agree with Lazer. Don't have any expectations on your labour as things don't go to plan. Go with the flow and you'll be fine.
Also to note: labour is just a small part and it becomes irrelevant once your baby is here and on your chest, regardless of your experience (and everyone is different).
Have you tried massaging clary sage with oil onto your belly or place on a handkerchief and inhale? I used it when being induced as it's meant to help bring on labour (and it was acknowledged by the midwife).
Good luck - what ever happens and we all look forward to hearing when your bubbas arrive xx