Parent, how are you doing?
Raise your child with good intention. With an intention to see her transform the world to a better place in future. For this, you need to grow towards positivity day by day. Lessen your momentary negative reactions and move towards the positive frequency. Be a gentle parent. Follow positive parenting.
Do not default your child's routine tantrum as another power struggle. Take time to think deeper into understanding your child's personality and emotions. Take time to know your child. Take time to know what your child needs and what she is missing out in return. May be, she just needs a hug or a little cuddle time. May be, if she had got her emotional dose in the morning, she would not be rolling on the floor crying when she had to just start for school. Look into your child's eyes, make an emotional connect and UNDERSTAND their needs. Raise better children.