Self-control separates us from our ancient ancestors and the rest of the animal kingdom, thanks to our large prefrontal cortices. Rather than responding to immediate impulses, we can plan, we can evaluate alternative actions, and we can refrain from doing things we'll regret. We can also take advantage of these innately human abilities by developing wisdom and willpower.
Behavior is said to be self-sabotaging when it creates problems and interferes with long-standing goals. The most common self-sabotaging behaviors are procrastination, self-medication with drugs or alcohol, comfort eating, and forms of self-injury such as cutting. These acts may seem helpful in the moment, but ultimately undermine us, especially when we engage in them repeatedly.