come to grips with (someone or something)

come to grips with (someone or something)

To begin to or make an effort to understand, accept, and deal with a difficult or problematic person, thing, or situation. I should have the report ready for you by this afternoon, I just need to come to grips with this new software update first. I've tried, but I just can't come to grips with Amy, she's totally out of control!
See also: come, grip