Is there an English idiom for when you must commit to a course of action even if it turnturns out to be the wrong one?

Kind of like "might as well go for it"a "might as well go for it" kind of thing, in my language there are idioms that roughly translate to "you must finish everything on your plate, even if it's poison""you must finish everything on your plate, even if it's poison" or "you must follow the javelin you have hurled"."you must follow the javelin you have hurled".

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edited Jan 4, 2022 at 10:29

user405662

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Kind of like "might as well go for it""might as well go for it" kind of thing, in my language there are idioms that roughly translate to "you must finish everything on your plate, even if it's poison""you must finish everything on your plate, even if it's poison" or "you must follow the javelin you have hurled"."you must follow the javelin you have hurled".