creature of habit
US /ˈkriː.tʃər əv ˈhæb.ɪt/
UK /ˈkriː.tʃər əv ˈhæb.ɪt/

1.
criatura de hábitos, persona de costumbres
a person who likes to do the same things at the same time every day, or who always does things in the same way
:
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My grandfather is a creature of habit; he always has breakfast at 7 AM sharp.
Mi abuelo es una criatura de hábitos; siempre desayuna a las 7 en punto.
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It's hard for a creature of habit like me to try new things.
Es difícil para una criatura de hábitos como yo probar cosas nuevas.