McKenzie says she’s distraught over her relationship with her identical twin sister, Brittanie. The 24-year-old says she’s tried everything she knows to help Brittanie kick her heroin habit, but Brittanie struggles to remain sober. McKenzie says she and her fiancé, Chad, recently decided that Brittanie is not welcome at their wedding, a decision McKenzie says she struggles with accepting.

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After Dr. Phil tells the young woman that Brittanie is the one with the decision to make, not her, McKenzie says she still feels pressure.

“No matter which way I go, somebody’s mad at me, and that upsets me,” McKenzie tells Dr. Phil on Thursday’s episode.

WATCH: How An Engaged Couple Says Her Twin Sister Is Tearing Apart Their Lives

“You just need to decide, you either want to be a victim or a victor,” Dr. Phil tells McKenzie. “You got to give yourself permission to walk in your power and say, ‘I’m entitled to the fruits of my efforts.’”

Hear more of Dr. Phil’s advice in the video above, including how McKenzie needs to change her internal dialogue. Is Brittanie ready to put in the work to get sober? See what happens on Thursday’s episode. Check here to see where you can watch.

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Today’s Takeaway: The First Step To Helping An Addict