Keeping my body moving during the day as much as I can and then reading helps calm my mind when I’m not moving. I know it’s hard to always be doing those activities but it has def helped me.
I have found that lots of walking during the day outside helps calm my nerves a lot. Or being around water and in nature as much as possible.
And of course trying to eat healthy as much as I can & drinking lots of water. I know all basic things you prob know but it really has helped me so much.