We choose what, or who, will die.
There is an old quote from John Owen: “Be killing sin or it will be killing you.” There is no middle ground. If you are not actively engaged in the death of your sin, it will be actively engaged in killing you. Ignoring it will not help. It’s just reality.
1 Peter 5.8: Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour.
Genesis 4.7: Sin is crouching at the door. Its desire is contrary to you, but you must rule over it.
Galatians 5.17: For the desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh, for these are opposed to each other, to keep you from doing the things you want to do.