do you like pain? no? neither do i, and neither does any other human being. the difference between a human vs. an animal is that a human understand what pain is and where it can lead him whereas an animal doesnt, for ex. the pain after working out, a cow would never undertand that it is actually good for it. so we have 2 pains, the pain that eventually gets better in this world and next meaning the pain of self control in this area that after a while gets easier (so i hear) and is worth it for spiritual reasons, or the pain of gettting worse and worse and worse where it even messes up ones life.
the choice is yours.
if we accept pain on ourselves for the sake of spirituality, then in other aspects of life where pain should be found, hashem takes away,
now after this, who would be foolish enough to not accept upon himself this pain for the sake of gaining self control?