This is mainly just a rant.
DD is 3 at the end of this month and I honestly found her easier at one and two.
She used to sleep fairly well - generally waking up once at night but easily resettled. Now she wakes at 5. I really have tried every bit of advice there is. I’ve tried the Gro clock (she ignores it) I’ve tried blackout blinds, I’ve tried white noise, earlier bedtime and later bedtime and naps and no naps and none of it makes any difference. She has a sibling who also went through the 5am stage but they’d stopped by 3. She’s started 
She used to be nice. Now … well, she still is, I know but it’s hidden under a lot of behaviour that is just slowly driving me nuts. This morning for instance she wanted a cold drink and I put an ice cube in her water and she kept wanting another ice cube and another and you say no and she ignores you and tries to drag you to the freezer and the only thing that stops her is getting annoyed and then she cries …
She’ll make the same request over and over and over even when you’ve given her the thing she’s asked for ‘mummy I want drink’ sure and go to get a drink and she’s shouting for her drink.
Some days it feels like she barely eats at all, she’s actually had breakfast this morning which feels like a win but lunch and dinner loom.
I guess I am just a bit exhausted and ground down by it. I had hoped for an easier time at 3! Maybe 4 …