Our emotions are always mediated by some form of thinking. 

If our thoughts determine how we feel, that means how we habitually think will determine how we habitually feel.

It is the habit of telling ourselves that a negative event is bound to continue happening in the future.

When we overgeneralize, we make predictions about the future based on isolated pieces of evidence from the present.

It is the habit of making decisions based on how we feel rather than what we value.

It's when we use our emotions and feelings as evidence for what we should or shouldn’t do. Depression and procrastination are common results of this.

It happens when we take our own errors or flaws and exaggerate them.

We take small negative events and turn them into disasters in our minds.

It involves assuming an exaggerated responsibility for things that are mostly or entirely outside our control.

And this leads to excessive attempts at control, which in turn leads to chronic stress and anxiety.

It is the tendency to evaluate things exclusively in terms of extreme categories.

It sets us up for chronic disappointment: When our expectations are consistently exaggerated, we never meet them and then always feel bad about ourselves.

It is the habit of describing ourselves or others in one extreme way, usually negatively. 

It is always an inaccurate oversimplification.

it involves being dismissive of our strengths and positive qualities.

It keeps us in a cycle of feeling inferior because we never focus or enjoy our true positive qualities and accomplishments.