One major step towards defeating lust — learn to differentiate between natural libido and lust.
I compare libido to a helicopter pilot who has control and knows what elevation to fly at.
I would characterize lust as a helicopter pilot who flies into outer space. He thinks the view and sensation would be a great high, but he’ll only end up in darkness or come crashing down.

Lust is something that overrides your natural libido. You can even see it as a spiritual attack on your instincts. Put on the Armor of God to protect your imagination, memories, and emotions!