Meditate & Mindfulness
Meditate
Consider breathing exercises (See the Breathe section).
When possible, spend time in nature or journal.
Consider using meditation apps like Calm, Headspace, Buddhify, and Simple Habit.
Mindfulness
Try the THINK process on your own negative thoughts or the inner monologue. Is it Thoughtful? Is it Helpful? Is it Inspiring? Is it Necessary? Is it Kind?
Be in the present without judgement-focus on the here & now. Avoid dwelling on the past and/or the future.
Avoid multitasking.