I agree with what Micah said for the most part, although the ward where I had DS1 was bloody brilliant - I asked someone to come and spot me and give me feedback every time he fed, they did and a bottle was never mentioned, even when he did the crazy, all night continuous feeding interspersed by shrieking that you describe. I was just given reassurance that it was normal and that I was doing well.
I would only latch and unlatch if absolutely necessary - the repeated re-latching is absolutely excruciating. Those rapid sucks when they're getting latched on are toe-curlingly, scream-inducingly awful in the early days and will put you off BFing quicker than just gritting your teeth through a feed.
The fact that you got cracked and bleeding so quickly suggests your DC1 may have been tongue tied, so I would insist on assessment for one BEFORE you are discharged. Ask for their breastfeeding lead if possible to do the assessment.
Pain - despite what people saying about it not hurting, I think that's actually hooey. I think some lucky people have no pain, ever, but others do until they toughen up. I had pain with DS2 despite having fed DS1 for so long I could get a perfect latch blindfolded - this was confirmed by many people. You just have to grit your teeth for a while and think, 'If this is the biggest sacrifice I have to make as a parent, I shall consider myself very lucky!' 
A word of caution about Lansinoh - wipe it off before a feed. It can cause the baby's latch to slip, which will cause you more pain. The very best thing for cracked and sore nipples is actually a liberal application of expressed BM - it's antiseptic, sterile and has antibacterial properties so is ideal. When I went through the cracked and bleeding stage with DS2, I made up a bit of a poultice after every feed of a massive slathering of Lansinoh over a thorough layer of EBM, covered by a breast pad with a little more EBM squeezed onto it. I also just fed off one side and expressed off the other for a day or two to give each nipple a rest and I was pain-free by week three with DS2. DS1 took 10 weeks (ugh...) but I didn't know all the tricks then!
Getting over the Everest of the pain and exhaustion of the first few weeks feels impossible but the feeling of achievement once you do it is indescribable. Best thing I've ever done
All the best with DC2 