That suggestion is for strong fears. If you're dealing with things like exam anxiety or interview anxiety. Just use the side that seems most relevant to your anxiety.
If you're working through an anxiety that is a real fear like fear of flying. Then you would use the a, b, a, b ,a, b, a, b, a, b, a, b, a, b, a, b, a, b, a, b, approach for about a week.
Alex
