When someone argues for change, the person on the other side naturally argues back. Every time someone says "you should," it invites a "yes, but" response.
Motivational interviewing avoids that tug of war entirely. Your counsellor will not lecture you, label you, or push you toward a decision you have not yet made. Both sides of your ambivalence are treated as understandable, because they usually are. The drink at the end of the day does something for you. So does the job you hate. Pretending otherwise just ends the conversation.
Once both sides are on the table, honestly, people often find the balance shifts on its own.