First, I just wanted to say that I am so sorry that you did not have a very good first experience with breastfeeding!

I was dead set on breastfeeding as well and did the same thing: reading, reading and more reading and bought a pump. I can completely understand when you say that reading and preparing is completely different from putting it into practice. Even though you read that it is hard, you have no idea until you acutally try it, you almost expect it all to come naturally with little effort...not so!
I had a very hard first 2 weeks, especially the first couple of days! It was extra hard when I became engorged and she couldn't latch on and I could only pump a little. I almost gave up several times, but somehow I found the strength to continue on (don't know where that came from with all of the exhaustion) and once I past the 2 week mark, it was a BREEZE! I ended up nursing for 17 months and I LOVED IT!!! So special, so sweet, SOOO HEALTHY for BOTH of you, and FREE!!!!
It may be hard at first, but if you can both get the hang of it then you will not regret it!! And if it doesn't work out for you, then at least you tried. It definitely DOESN'T make you any less of a mommy or mean that you failed if it doesn't work and you have to switch to formula. Some women just can't produce enough milk and some babies just can't latch on.
I say DEFINITELY give it another try! It may not be for everyone, and that's okay, but the benefits are so great if you can. Oh and tell the L&D nurses no pacis this time!

Good luck!