The process of learning a new technique requires as much mental activity as it does physical. In order to learn a technique you must practice it over and over, while learning to apply it on a resisting opponent. In life when things get frustrating do you walk away or keep pushing forward? Just like learning a technique, if you quit you will never learn. The mental strength to keep pushing even when things are not going your way will show up in other areas of your life, outside of the gym.
BJJ can also be a great way to relieve your daily stress. Train with friends, have fun, learn something new, roll hard and let our frustrations out. Use the academy as an outlet.