Am I the only one who finds some of the replies in this thread rather bullying in tone? Do none of you remember just how bloody awful sleep deprivation is? Telling the OP to 'suck it up' and 'you're a parent now' is harsh, unnecessary and a little cruel - especially when posters are admitting they've made mistakes too in the past.
Here's the facts, as I've learnt:
EVERY BABY IS DIFFERENT. Fate will talk about the necessity of taking a dummy. Sure, if a. Your DC will take one (mine didn't) and 2. You don't developing a habit that's going to be very hard to break.
Sleep deprivation is a killer. It really is, and if it goes on for a few months it's awful. You feel self pitying, hard done by and angry. I was expecting sleepless nights as a parent. What I was not expecting was this sheer torture. Absolutely no one can prepare you for it. For us, we had well over a year of it and undeniably, it has taken its toll on my physical and mental state.
I spent hours and days trawling the sleep forum for help and advice in the bad days. And what did I find most helpful? Not the advice, not the bossiness and sometimes rudeness of some and not the long posts that described in detail a technique that 'definitely, definitely works'. So when it doesn't, you feel like a failure. No, what got me through was the hand holding, the kindness I did find, and someone just saying 'hey, you're not alone. You got this. It's OK to feel this way.'
And I didn't wallow. I persevered, got my DD into a routine...and now she is so much better. OK still a way to go and teething messes things up, but she can sleep through and can self settle. And I've learnt that I am so much stronger than I ever believed.
Sorry for the long ranty post! I just didn't want to berate you OP. We considered controlled crying many a time, usually lying there tense at 4am and desperately wondering what to do. We tried it twice - it was way too distressing for all of us, so never again. But I don't judge those who are considering it. Like I say, every baby and parent is different.
Good luck OP! takes deep breath and remembers why I don't come on here anymore