Unloading negative emotions may provide a momentary catharsis, but studies show that in the long run it does not help in any way. Venting frustrations is often seen as a natural way to get rid of excess emotional baggage.
The more emotions we release, the more 'congested' this neural pathway in our brain becomes. Instead, it's better to use "psychological distancing" techniques until you calm down, then address the root of the problem constructively. Real coping requires moving forward, not exploding.