Poor you mamachat. I read this last night but did not have a chance to respond.
IMO, if the parent is happy and relaxed, then the baby will be too. I think that the people who are totally against cc should have stayed off this thread as all they have done is make you more upset and unhappy.
It is really hard to hear your baby cry. I hate it when dd cries, even for a minute. However, she needs to sleep properly, so do you. CC will not harm her. You will be going in constantly to reassure her. She is pulling her hair out as she is angry that the situation has changed from what she is used to but she needs to sleep. People spout on about how cc is so detrimental to a baby. First of all, I disagree and secondly, surely it is detrimental to a baby not to allow them to get a good night's sleep. A baby who is well fed and not ill or need burping does not need to wake every hr to feed.
CC is hard for a parent as n o-one wants to hear their baby cry. However, I know many people who have done it and it has worked very well.
If you want to try again, make sure you have it all planned out and even written down how you are going to do it.
Make sure that dd has a good bedtime routine in place.
Even if you have to go in to reassure her every 2/3 mins to begin with on the first night.
You need to do it properly. Once you start, keep at it as otherwise, she will get mixed messages and it is not fair on her.
We have just ditched dd's dummy which she was using as a prop, just like your dd is using your boob. My dd is 4 mths. we didnt need to do cc, just had to leave her for a few mins, sit with her for a few mins.
It took 3 days. Within a week of giving up the dummy, she started sleeping through the night. I was dreading getting rid of it and she was a bit grumpy but she has soon forgotten about it.
I know that what we did is different, and I had dh to help, but you sound like you are at the end of your tether and you need a quick result.
Your dd will be fine. In fact, she will be happier as you will be much more relaxed and both of you will have had some proper sleep.
Good luck.