Why beat up motivation is inefficient

The way mindset functions is through an intricate connection between emotions and cognitive thought. The mindset equilibrium is what establishes your perspective lens on life, which in turn controls how we think. If we abide by motivation with the focus of beating ourselves up to achieve goals then it will destabilize the emotional side and cause a negative mindset equilibrium.

Although emotion can still be transmuted, the cognitive thinking would lean towards negativity.

So you end up with a productive attitude, but could be self-destructive if the beat up motivation triggers darkness and negativity.