I said the same thing to my friend who has three kids ad he said 'oh don't worry about it. I hated all my kids til they were two.'

It's not all roses and dreamy rainbows. In fact, I read you are programmed to react in a strong way instinctively to the sound of your children crying (other children crying won't have quite the same affect). Go easy on yourself, getting used to crying is a big part of faterhood and eventually, with some work, you'll be amazed at how little it fazes you.