Weakening a bad habit - Paramhansa Yogananda

Habits of thought are mental magnets that draw to you certain things, people, and conditions. Weaken a bad habit by avoiding everything that occasioned it or stimulated it, without concentrating upon it in your zeal to avoid it. Then divert your mind to some good habit and steadily cultivate it until it becomes a dependable part of you.

Devotion over reasoning

One should not reason too much; it is enough if one loves the Lotus
feet of the Mother. Too much reasoning throws the mind into
confusion. You get clear water if you drink from the surface of a
pool. Put your hand deeper and stir the water, and it becomes
muddy. Therefore pray to God for devotion.
(Ramakrishna, `The Gospel of Sri Ramakrishna' )