alt Hacker NewsIt's more to separate the feeling from the reaction to the feeling by a layer of understanding & examination. Feel first, understand the feeling, examine whether the feeling is appropriate for the situation that caused it, determine how to react, react. It's an OODA loop applied to one's own emotions: Observe the feeling, Orient on the situation, Decide on a response, Act as decided. If you pre-decide to always suppress any reaction you're missing the point. Stoicism is quite similar to modern Cognitive Behavior Therapy. If you just react without thinking you'll often react to your learned habits rather than the actual situation at hand.
The realization of emerging emotions by cultivating mindfulness. I mean this is basically also what various practices/exercises in (Zen) Buddhism aim at. But I'd argue that the practical methodology advertised by Stoicism is too ratio based to be effective beyond a basic . I would rather put my money on more indirect approaches like classic mindfulness exercises and meditation. They are less goal oriented by design, but the axiom (which I accept from experience and observation) is that a healthy mind will be expressing stoic virtues naturally without knowing how to call it.