Is it a sin to listen to subliminals?

Im Catholic, I listen to subliminals to get a pretty face since I'm not that pretty right now, the reason I want to be pretty is so that I can find a husband one day and have a family but also so that I feel good about myself. Not to make people lust over me or make people jealous.
Now the mindset I have when I listen to subliminals is that "if God wants me to have this certain feature, He will give me it" so I don't EXPECT something, only if God allows it.
Subliminals is just music with hidden affirmations by the way! I read the affirmations.
Is it a sin to listen to subliminals?
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