Like your mental health? To bad throw it out the window by doing Kumon! I swear to got all they teach in math if fractions and make you want to do something horrible, kumon can be helpful for basic things but then they teach you super unhelpful math that you will never use even in school. It seems as the only unit they can help with in school is fraction and NOTHING else. The teachers at some locations are really old and just look at you funny if you dont know what to do, or get mad at you for not showing your work. I have a deep hatred for this company. Do not traumatize yourself and stay out of Kumon.