Labour is really nothing to be scared of and i'd put money on it that by the time your due date comes you'll be asking for the pain train to come lol!!
I was never afraid of labour so i may not be much help but i really found that being well clued up on all possibilities was a great thing i understood exactly what they were doing even if they didn't explain it well, and i would really recommend reading the birth stories in the new arrivals section, get an idea of how peoples labours went etc.
Your body really odes take control, my body started pushing for me when it was ready and i listened to the MW's when they said to not push etc , i didn't tear so didn't need stitches though i did put in my birth story i was so glad i didn't have them.
I had a short but very intense labour and i entered hospital begging them to cut her outta me
but i'm so glad i did it myself and just 6 months on i'm more then ready and willing to do it again.
FWIW the 13 year old being cut lots may have something to do with her not being relaxed enough and possibly her age as a 13 year old body isn't really prepared for pushing babies out, optimum age for babies is 21 (or around that) so don't think that because she had a bad experience you will to.