Taking things slowly and not being overly hasty can help temper one's impulsive nature.
Previously unaware, it turns out that an impulsive nature is actually a form of negative energy. It causes the body to become tense, makes one rush through tasks, and in moments of urgency, leads to incorrect judgments or choices, which only exacerbates the situation.
Indeed, upon reflection, if there is an event that you cannot prevent, no matter how anxious you get, the outcome remains unchanged. If it is something that can be altered, there is no harm in taking your time.
Engage in deliberate practice until you no longer feel rushed. In life, there are not that many situations that warrant panic. Why rush into things?