How do you handle perfectionist?

My twin sister is a perfectionist to the point I wonder if we are really twins.. I mean when she is the kitchen or doing something everything has to be so perfect. She hates it when people don't things perfectly or disorganise what she worked on. She wants everyone to be like her every time. That is one cause of our argument.. I just do things as long as they are done on time and well
How do you handle perfectionist?
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