Mindfulness involves spending time focusing on the present moment and using a nonjudgmental stance (things are not good or bad, they just are). This may sound straightforward but it can be tricky as our mind often wanders. Try to spend some time each day focusing on a single activity for 10 minutes. For example, focus on the experience of breathing: noticing the physical sensations that you have, the sound of your breath, the feeling of your chest rising and falling as you breathe, the feeling of air entering and leaving your lungs, etc. Try your best to keep your mind focused on these sensations. If you notice your mind wandering, gently redirect it back to the exercise. Engaging in these exercises on a regular basis can help you to feel emotionally centered. Check out websites, apps, and books for more information on mindfulness and guided mindfulness exercises.
For me it stems from witnessing my mother unconscious after her successful suicide. I was 10 years old. Just about to turn 11. I went from a lively fearless child to an overcautious adult. Now well educated and on permanent disability. Anxiety over the recent elections had me frozen for a day. Then I burst into tears the next. These attacks are linked to the day she died. I have an excellent psychiatrist. Had a breakdown in 1996. I have improved since then. But these moments come up. I want to be normal. I have PTSD and bipolar disorder.