She’s nearly three so I know she’s only small but I need some advice. She’s very very sweet when she wants to be. She is also one of the most angelic-looking children I’ve ever seen 
She’s always been a bit of a wild one. More so than my five year old. They are very different personalities (but have become very close in lockdown which is really lovely). But I feel like her behaviour is really declining and I’m worried about it.
It’s the wilfulness of a lot of it. She’s a happy wee angel then it’s like a switch flicks and she’s naughty. We can’t paint any more because she can’t help herself but paint the furniture. I simply can’t trust her with it and it’s more hassle than it’s worth. If her sister is working on a picture, she will ruin it. She deliberately breaks things, tears books, throws stuff around. Hits out at her sister, climbs on her if she’s sitting watching tv etc.
Her eating is atrocious as well. She rarely eats a meal. Just wants to graze all day long. It’s like she doesn’t have the attention span for it. Slides to the floor under the table after a couple of mouthfuls and refuses to get back up again.
And oh, the tantrums...
I have tried naughty step but it’s a game to her. I have tried lots of positive attention (ignoring the bad to an extent but that’s difficult, especially when she’s attacking her sister) but it hasn’t mad much difference. We take them to a nearly golf course and let them run and she enjoys that but has started to deliberately run away at full pelt.
I’m worried about her and at a bit of a loss, to be honest.