Cast all your anxiety on him because he cares for you. Peter writes this to people under real pressure. Not as a pious tip, but as a New Covenant reality.
Casting your cares does not mean ignoring them. It means no longer treating them as your guide. You have a Father who provides. Not because you believe hard enough, but because he is faithful. Your standing does not change with your mood.
Today you can name your worries and consciously hand them over. Not as a ritual, but as trust that grows from sonship.