face up to (something)
To deal with or tackle something that is troublesome and/or causes one trepidation. Just face up to your role in the situation—I'm sure Maggie will forgive you if you're honest with her.
face up to
Also, face it. Confront or accept an unpleasant or difficult situation. For example, Jane had to face up to the possibility of being fired, or Face it-you were wrong. [Late 1700s] Also see face the music.