DD2 has just turned 2 today and since the beginning of August her sleep has gone totally to pot (the same time as she started nursery). I used to read her a story, give her milk, sing a song lie her down then leave her awake and she would drift off to sleep. Now I do the same but the second I leave she screams the place down. I started off going in an out but every time I left she got more and more upset so I lay on the floor and patted her bum, now I’m stuck in her room every BT on the floor patting her bum, if is top she shouts mummy and starts patting her own bum until I do it again. I can occasionally get away with lying on the floor singing but she will be up and down like a yoyo checking that I am still there. If she sees me leave it starts all over again so I need to stay until she is fast asleep then sneak out.
She has a couple of times self settled during the night but more often than not she has been waking once or twice a night and we go through it all again.
I need help on how to get her out of this as I am totally shattered. Any ideas on the best approach to try for her.