Hi SmileBit, I think thats such a hard question to answer. I didn't come to this area of psychcentral again until yesterday. I don't know what those common switches are myself. All I know is you can and will recognize them in time. You already realized at 19 that thinhs clicked and working out became fun. What are those other areas you need help with? Obviously depression because you are in this section. Keep talking, keep letting people know what you are feeling and needing help with. And I absolutely agree with what you said. What seperates us individuals is the ability to like and enjoy what we do. I'm sorry I'm not able to answer your question.