At my wits end with my daughter

Any advice would be excellent!My almost 7 year old has the worst attitude and I’ve had just about enough. When she loses her temper, which is often, she is the most spiteful, ill-mannered child I’ve ever met. For example the other day she wanted a piece of paper her little sister had gotten from daycare, little sister said no so she screwed it up and threw it on the floor. I yelled at her but when we got home I apologised, we talked about it and spent a good amount of time together playing games etc. (this is just an example of how these things usually go).So tonight I had to take her, her friend and her sister to a fun fair thing. I let them go on a few rides and bought them some silly string. I told them they could use the silly string before we got in the car, well when my 6 year olds silly string ran out she lost her mind. I said ok well that’s finished let’s go, and she ran after me screaming ‘I WANT MORE!’ It was mortifyingly embarassing and I admit I absolutely lost it with her. She started saying she didn’t even want her friend to sleep over (can’t imagine how this poor little girl felt to hear that) and saying that she doesn’t deserve anything. Usually when I ask her why she’s so upset (she screams and sobs) she makes silly excuses like she’s being bullied at school, which I have talked to her about and I don’t think that’s the case at all, she tends to take offence to people disagreeing with her and says it’s bullying, plus she only brings it up when she’s in trouble.Honestly I’m sick of talking it through and trying to understand, I’m always making excuses like she’s just tired or had a big day and I’m wondering when I stop doing that and tell her it’s just not good enough. Being tired isn’t an excuse to treat people like shit.Things aren’t great for us at the moment on the adult side of things and I feel like this is just adding to the burden, I try so, so hard to understand and I remember being a kid and being sad and feeling like no one cared so I keep that in mind when dealing with her but I’m only human, I can’t deal with this much longer. It makes me avoid taking her anywhere because this is how it always ends. via /r/Parenting http://ift.tt/2zJkwes