How to speed up a very anxious child that needs control

[Chihowhow]

My 6 year old is a very slow eater/dresser. If you ask her to speed up/hurry up it has the opposite effect-it stresses her out and makes everything take so much longer. It took over 30 minutes this morning for her to eat her advent chocolate, making us nearly late for school. How can I speed things up without making the atmosphere stressful? Xx

How is she at school @Chihowhow and does she respond well to treats, like if she's dressed and ready for 8am she can have 10 minutes screen time?

Could she have her Advebt Calendar after her Tea instead of in the morning?