When I go in, it just gets her going again am I wrong to think this is how she'll settle best?
Not necessarily, some LO's do do better with less intervention, but you want to make sure she always knows you will be back if she needs you and not break that trust, which is why BW philosophy does not support any time of cry it out or controlled crying (not saying this is what you are doing, just letting you know
. So if you are going to take that approach then you are looking at more of a walk in walk out sort of deal. I think this is ok if she has the skills to put herself to sleep already and you are just trying to teach her that she has to go to sleep without feeding.
Walking and singing can be a prop, but it doesn't always have to be wrong. For example I walk and sing to my 12mo before sleep times and it's a nice ritual for us, with no issues. The problem comes from when LO's become dependent on something like walking or rocking to fall asleep. If you want to incorporate this into your wind down though to help soothe and calm her, I don't see anything wrong with it.
So, if you would like to do WIWO, then this is what I suggest. You would do your wind down and put her in her crib as usual. Say your sleep phrase, something like "night night time to sleep", and walk out. Pause, and
listen to her cries. This is where you need to know what she sounds like when she really really needs you, because she will cry and sometimes it may seem out of control, but there is a difference. If she is not settling right away you return, you want to try and calm her but with minimal interaction, and only use your sleep phrase. And then walk out again and wait again, repeating this for as long as it takes for her to settle herself and go to sleep. With WIWO you are trying not to pick up, cuddle, ssh, pat, or anything like that, there is very minimal interaction but you are still always present when needed.
In the beginning, these sorts of approaches take time, and there is crying. Toddlers do not like change! BUT, once you are committed you have to see it through. The difference between this method though and controlled crying is that you are always returning when she needs you and she is never left to cry.
What do you think? The most important thing right now is deciding how to approach it, and then following through. You can't change the plan once you have started because it will be confusing, and you can't give in and feed once you've decided not to. But I do promise you that you will see results if you stick to it.
Oh, one final note though, if your LO is teething and in pain, you will probably have to reassess your plan a little bit. So while you still want to break the feed to sleep habit, you will have to keep in mind that she is in discomfort and will probably need a gentler way of being put to sleep while she is teething. I only mention it because I know teething is a common sleep disruption at this age.
HTH