Dont worry! Things will settle soon. I am also a working mother in IT. My first son is studying in LKG. U cant see a good & brilliant boy like him before my second girl. But now he is not controlling his emotions. scolding, shouting... My doctor asks us to do the activities combinedly with him. When things are totally out of control, I will give him hug & kisses to make him calm. When he is yelling nothing with go to his mind. I will tell him good stories at night. Choose a right story of our situation & explain him when he is calm & listening to me. Make them play outside with friends will also calm him. you can also try this... do your work in office & care for your family at home. all the best...
How is your son's anger right now? he is able to understand and control it???? Sure, things will change and kids would grow and eventually they change. They would understand everything and change themselves. They would concentrate more on studies or some activities.