but thought that was what you were supposed to do at this point.
I don't think there is or should be anything your are supposed to do. All BW (other sleep) techniques are ideas that people have found can (to differing impacts work). Although not recommended at all her Cry it out can work, so for that matter can medicating a child with a sedative & some people (not on this site though

will say they are what you should do.
The main thing is we sleep better when we are calm & relaxed. Think about how sometimes you as an adult react differently to situations... if I am angry I like space to bring myself back to calm, if I am upset, I want to be held... babies can be much the same, but of course they don't have words to describe that (& they probably don't differentiate between anger & upset, they just know they need to cry) so they cry. As a parent I feel like I get it 'wrong' as often as I get it 'right' but I do know that there is always another chance to fix up the "wrong".
For me (I've got a teenage son) I really do thank my lucky stars that when I had babies & toddlers I (mostly) learnt to take the hurdles in my stride... neither of my boys were consistently good sleepers - one of them we discovered when he was 5yo that it probably had been an ear problem - rather sad to hear your 5yo say "I didn't realise you could lie down without your ears feeling funny, the other is very very low sleep need & would only need about 11-12 hours by 12mo, where as I was trying to get him to sleep 13+ like his brother did... so we battled years of up & down sleep, but I can say I've now got a teen & an almost teen they both love sleep more than technology & that's my "easy time now" compared to lots of parents I know.