1. Practice labeling your emotions.

Putting a name to your feelings decreases their intensity. So whether you're feeling sad, anxious, angry, or scared, acknowledge it--at least to yourself.

Also, pay attention to the way those emotions can affect your choices. When you're feeling anxious you may be less inclined to take risks. When you're excited you may be more impulsive.

Increasing your awareness of your emotions can decrease the chances that you'll make irrational decisions based on emotions only.