Eat expensive local/organic food. We don’t really know what is in it of course. But expensive food is a game of probabilities. Cheap food is guaranteed to be full of various shit from antibiotics to pesticides. That’s how they make it cheap.
Emotions are sets of specific bodily sensations [link]. Once they manifest, they are reinforced by loops of thoughts about them. So when you want to easily get rid of an emotion (e.g. loneliness or anger or self-doubt) you can sit down, find that emotion in your body, and pay close attention to it. This breaks the rumination cycle (because you aren’t thinking) and reinforces your self-awareness (because you find emotion-driving bodily sensations => understand that your self-doubt is merely an itch). I can dismiss negative emotions in 30 sec — 5 min. They just vanish.
…sleep. Gunnars are good. Plus lately I’ve been using these because they block even more blue light. They do look weird, but we have to decide whether our ego matters more than our health/intelligence.