Emphasis on thinking is often misplaced. It&#x27;s pretty much impossible to &quot;think&quot; yourself happy when sad, or think yourself into being a competent person when you think you&#x27;re worthless. But deciding to do some particular action can go a long way.<p>From the wiki page of one of my favorite modern pysch methods:<p>&quot;Behavior is made up of these four components: acting, thinking, feeling, and physiology... We have considerable control or choice over the first two of these, and little ability to directly choose the latter two. As these four components are closely intertwined, the choices we make in our thinking and acting greatly affect our feeling and physiology.&quot; (<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Glasser%27s_choice_theory" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Glasser%27s_choice_theory</a>)