This period, is best to ignore her, it's work like wonder, after 1 round of failure, next time they are more obedient.
Make sure you are firm, and fierce, if not they will not scare you and continue throw tantrum.
Everytime my girl throw tantrums unnecessary, i will put her behind the door and let her cry till she stop. Make sure u close the lights, so they dun like e feeling, than will know do it again unnecessary.
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