18 month old not sleeping through

[Blahblahtasha]

currently sat with my 3 month old sleeping soundly (and he has been since around 7pm), but my 18 month old is in her room whinging and crying and wide awake!

I'm attempting to go cold turkey with night time bottles as i know that's part of the reason shes night waking. It was going very well until about 2 hours ago and now she just refuses to sleep.

very close to just giving in and giving her milk, but dont want to undo any hard work and go back to square 1!

any advice on helping her settle down without milk? (or even just how to stay strong through the crying/whining for it)

Hi, she is still little and there's plenty of time for her to learn to sleep through. DS1 didn't sleep through at 18 months, but did at 3 months, then stopped. They are only little for such a short time. Try not to stress. I think we all think that everyone else's kid sleeps 12 hours solid every night but the reality is far from that x