Leave Anger and Regret at home, they are not needed. 

Anger blames others. 

Regret blames you. 

Both Anger and Regret have never made a situation better or even gotten close to solving a problem.

They are more than useless, they are destructive. 

The friends you need are Compassion and Action, take them with you everywhere.

Compassion helps you see the best in others and in yourself. 

Action always makes sure you are heading in the direction of your goals and potential.