A very effective technique for combating mental confusion, irritability and negative emotions like fear and anxiety is internalizing the mind.
In practice, internalizing the mind means a commitment to simply not care about the external world and focus all attention on ones own mind and its content instead. It is important to just cut any thought processes regarding the external world.
Once the mind calms and begins to rest inwards it becomes easier to hold the external factors in perspective to their importance.
It would also become easier to systematically work out solutions to problems and challenges posed by life.