it is so annoying when your fears and worries are dismissed. do you know if your first baby was back to back / OP ? that can make a labour much slower and give you strong contractions with little dilation... you can have a look at optimal foetal positioning, which gives you ideas on how to get baby lined up into a good position for birth. and www.spinningbabies.com has good tips for moving a badly positioned baby in labour.
your best bet is a mobile, active labour, where you can listen to your body
yes , second labours should be quicker as you know more of what to expect, and your body will remember having done it before.
BUT, if you are fearful and holding onto a bad birth, the fear and anxiety can slow things down and that tension can also make for a slower more painful labour.
so the best thing to do is to talk it through and tell yourself this time can and will be different.
you could try strong , positive visualisations of the birth, to get a good picture in your mind as to how you wnat things to go, as the state of mind you are in can have a really big bearing on how labour goes.
you might want to look at hypnobirthing, a lot of women swear by that for a relaxed labour
can you consider a home birth? being in your own environment , eating and drinking as you need to, mobilising and vocalising as you need to , can have a really positive impact on labour.
or hiring a doula, for home or hospital birth, to support you before, during and after the birth? www.doula.org.uk
my first birth was a failed induction ending in em c.s, my second was a spontaneous labour ending in an intervention free vaginal delivery. so very , very different.