Night wakings

My girl will be two in july and for the past two days she has been constantly waking from 12am-4am.

Nothing we do works!!!! She talks non stop, we try to tell her nicely and put her back to bed and it does nothing. We become a little more firm in our tone and she still doesnt take us seriously.

I have just had a baby, its been 1 week so i dont know if it has anything to do with that or is this a sleep regression?

Its so exhausting trying to get her to sleep. Any ideas?

Also just want to add when we try to nap her she always im scared, i dont want to sleep and just cries/yells through out the whole process. Toddlers are so draining 😅