The emotions that stem from your thoughts are the product of your point of view, your underlying beliefs and the amount of power that you put in them in the form of faith. In case you are trying to alter your emotional state by altering only your thoughts, you will never be able to succeed. Attempting to alter your emotions without changing your viewpoint, faith investment and underlying assumptions will probably fail. It will be like building a chair with a single leg and expecting this to give you the support that you need. If you want to change your emotional reactions, emotional state and put more happiness into your life, it is a must that you change your point of view and recover your faith from the false beliefs that you have