C.W.
Hi, N.. First, let me preface by saying I am not a cry-it-out hater. I do believe if this method is going to be used that it be last resort and done correctly (not under 10 months). However, I understand being sleep deprived and desperate.
Have you thought about bringing the crib into your room (sometimes just hearing your breathing in the room is comforting to baby, let's them know you are right there)? Or placing baby in a bassinet or hanmock (something that offers a more cozy, womb-like experience)? And what's wrong with touching your baby when she is crying in her crib? A simple pat or rub on the back teaches her you care that she is distressed and is calming (let alone helps stimulate growth).
6 months is still so young. Scientific research states that at this age babies can't manipulate their parents and that their cries are always for a real need. The need for their mom is as strong and important as their need for food.
I'm not trying to preach or make anyone feel bad, just wanting to explore some other options so baby's and mommy's needs can both be met. I totally understand being tired and frustrated but (sigh) no one said having a kid was easy. We grown-ups tend to want our kids to hurry up and become self-sufficient too fast. It takes time, and you'd be surprised with how well kids learn to self-soothe when they feel secure in knowing that you are there for them. Building that foundation of trust and dependency first is what really helps baby feel secure enough to move into being independent. I have no doubt you are a wonderful, caring momma (why else would you post on here if you didn't care). Have a wonderful time with your precious little one and God bless!