What do you think about the cry it out method?

hi thanks for taking the time to answer my question. the thing is i have NOT attempted this method yet. my daughter is 8 1/2months old .my first child . and i pick her up when she crys and dont want to put her in her crib to cry her self to sleeplike a lot of first time moms proibily do. i have tryed to do every thing by the book . and it says when they are very younger that the cry it out method is rong because there too young to understand .. so now that shes a bit older she is use to my picking her up when she wants me. and wont fall asleep unlessin my arms .but my husband and my mom are telling me i need to put her in her crib and even if it takes 2 hours of screaming to leave her untill she falls asleep. and dont pick her up every time she crys.now initially your not to use the method because it's causes insecurity. so now that shes secure in that fact that i'm there for her . wont it just reverce it all . if all of a sudden i stop picking her up