Autocorrect has always been problematic - there are loads of websites devoted to such fails [0]

You've got three basic options:

- disable autocorrect and see just how bad a typist you really are (related: setup your own autocorrect shortcuts)

- use a different keyboard (Grammarly is one popular choice (though I don't use it anymore on mobile...I too often use my phone where LTE is spotty))

- type slower to not plow past the autocorrect options

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[0] https://www.qwant.com/?q=autocorrect+fail