Is happiness really a single thing?
As mentioned above, SWB is really an umbrella term that includes several different components, and these components are somewhat independent. That is, one can be high in one and low in another. Thus, one must to some degree understand the components separately. If one wants to be “happier,” this might mean increasing positive affect or decreasing negative affect – and these two things might require very different actions. Similarly, there are even some behaviors that produce higher satisfaction (completing a boring but necessary task, for example) but produce lower positive affect.