My second was a bloody bastard identical carbon-copy of my first 
and ended in intervention again (vacuum)
I was utterly pissed off because I had been given all these speeches:
'each child is different'
'this time your body knows what to do'
'second time is always quicker'
'second time always easier'
I could not believe how similar it was and I know this is not what you want to hear, but occasionally it is the same however I survived it again and so will you OP: please do not think I do not get how you feel as I am expecting my third in seven weeks time...
I went through absolute panic attacks at Xmas - could not get past it at all and kept crying/unable to sleep/nightmares.
Then I realised that even though it felt like the nearest I was going to come to dying each time that ultimately - newsflash - I am still here and cannot change the outcome in two months apart from not stressing about it. So I have come to terms with it and am currently not at peace but am in denial not going to punish myself meantime.
I will admit - tmi - I panic a little if I am constipated and/or trying to push out a big poo (nice I know) as I think - feck, I can't even manage this. How the feck am I going to manage with a 37cm head?
But as long as DC3 is healthy and I survive then that is what I am trying to focus on. A very sympathetic friend of mine has just given me a copy of Hypnobirthing by Marie F Mongan complete with CD...I have no idea if it will help me or not but putting aside my scepticism I will give it a go in the next few weeks as I have nothing to lose by having a go.
I wish you luck and hope you have a better experience this time around.
Whilst I myself would adore a 'sneeze birth' or an 'orgasmic birth' I wish!!
I am preparing myself mentally for more of the same. Others though like some posters above can vouch for a better time of it so although I am normally scadenfreudig I hope you are like them rather than me! 
xx