What I wish somebody had told me back then is if you’re stuck in your head you’re missing your life. Your life doesn’t happen in your head, it happens in every current moment as you interact with the world and the people around you. The more you analyze, daydream, replay past interactions, anticipate what will happen in the future, and so on, the less present you are for your life. You only get one short life anyway—don’t you want to really be there to experience as much of it as you can?