Something about real will

>My heart is best guarded from sin when it is submitted to the loving care of others.

As a regenerated Christian, a born again believer, you should need no external force to not sin. The fruit of your regeneration and sanctification (not talking of perfectionism) comes from within you; from your new heart and new nature. You shouldn’t be in the fallen situation where you want to sin, but an external constraint keeps you from sinning. You should be in a state where you no longer desire to sin (and if you fall you don’t desire to stay in sin but desire to get back up and out of it as fast as possible; you find it abomination, and with each fall you are more likely not to fall again and by lesser and lesser degree). You also begin to realize you are on a battlefield, a spiritual battlefield, where mistakes are costly, and you develop as a soldier of Christ to no longer give the Devil and the world and your fallen nature any victory over you by your own mistakes.