I need some help :(

My 8 month seems to be having sleep regression, teething and separation anxiety i think!!

So last night I gave her some milk it was either at 8pm or 10pm as I wass up so much ive lost track anyway everytime she wakes I offer boob she didnt want it at all.

Wakes up at 7 and still doesn't want it come half 8 still doesn't want it

So I gave her some breakfast (solids) as shes due a nap and now shes gone to sleep with no milk to nurse her to sleep.

I dont know what to do im I'm doing anything wrong whay I should be doing