Meditation, deep breathing, longer-term therapy — all of it works better when your nervous system is not on alarm.
When the body is on alert (tight chest, racing mind, light sleep), asking it for stillness costs twice as much. It is not a lack of discipline: it is physiology.
Habits that help regulate the nervous system, free and app-free:
This is not a "cure yourself" list. It is the natural order: the body first, and the mind thanks you for it afterward.
If you are in treatment for anxiety or depression, this supports it, it does not replace it. Talk to your professional before changing anything.