6 ideas
Most people guard their property fiercely while letting others freely steal their time, which is the one possession that cannot be recovered. Treat time as the scarcest asset: refuse to surrender hours to obligations and people that yield nothing, because every wasted moment is permanently gone.
Set aside regular intervals where you eat the cheapest food and wear the roughest clothes, then ask 'is this the condition I so feared?' By practicing hardship voluntarily while secure, you discover that what you dread is survivable, removing fortune's power to ambush you.
Select a single admirable person, real or imagined, and live as though they were constantly watching your conduct. The mere presence of a respected observer reshapes behavior, so internalizing such a guardian straightens the crooked actions you would otherwise excuse in private.
Mingling with large groups returns you home greedier, more ambitious, and more cruel, because vices spread by association the way disease spreads by contact. Withdraw from the mob not from misanthropy but because no character is strong enough to resist constant exposure to the values of the many.
Much of human anguish comes from anticipating misfortunes that never arrive, so the mind tortures itself with future evils long before any real harm occurs. Confine attention to present facts rather than projected catastrophes, and most of your suffering dissolves as ungrounded.
Riches are not having much but wanting little, since the person who limits desires to what nature requires is already rich while the craving man stays poor amid abundance. Set a ceiling on wants according to need rather than chasing an endlessly receding 'enough.'