SavannahRose -
You will find good and bad experiences of both CS and VB on this board, as I'm sure you know. I had an ELCS for my DS recently, 1st DC, due to primary birth phobia, and it was a wonderful experence with a very quick recovery. It is worth bearing in mind that planned CS's and emergency CS's are very different experiences. Many of the problems, esp with baby's health at birth, and mother's recovery, are associated with emergency CS's not planned ones. So just bear that in mind when reading responses.
You can ask for a CS whenever you want - maternal request is not a reason for one being 'granted', though. You will need to see a consultant, as they are the ones who agree it. You can usually make an appt with a consultant yourself if your MW is not helpful - normally they will refer you.
If you are requesting a CS because of a previously traumatic birth, then the main reasons they are normally granted are physical damage and the risk of making it worse (e.g ongoing incontinence, although it's mainly bowel incontinence that's taken seriously) - and psychological damage, such as PTSD following a traumatic birth, and the risk to a mother's mental health os another unwanted VB.
'Simply' having had a difficult or long labour with your first DC is unlikely to be seen as a reason for a CS. You will probably be told 2nd births are normally easier, and not to worry. If you feel there is a strong mental health issue for you here, I'd recommend both mentioning it to your MW and your GP, and asking to be seen by the perinatal mental health team. They are likely to want to explore counselling as a first option.
CS's are not normally carried out before 39 weeks.
Normal hospital stay is 48 hours these days. You can drive as soon as you feel physically able and comfortable. I'd read so much about 'you can't drive for 6 weeks! You need permission from your insurers!' but when I rang my insurance company, they didn't know why I was calling. As far as they were concerned, if I felt well enough to drive, then I was fine.
I took things gently after my CS - stood and showered 12 hours later, felt fine, was pretty mobile after day one, although sitting up from lying had to be done carefully - had stitches out 5 days later. I was careful not to do anything too strenuous - friends who'd had CS's had felt better so quickly they did things like clean the house from to bottom, and then felt quite achey (unsurprisingly). In general I'd say I had a great recovery - I've had my appendix out, and that was much worse (although I'd had acute appendicitis beforehand for 2 days - maybe if I'd been in labour for days I'd've felt awful after a CS).