Anger and anxiety are based on an illusory, egoic view of the self. If we can lose this false sense of self, we can reduce our anxiety and anger.
We all have a tendency to blame others and position ourselves defensively. By changing this habit, we can make ourselves healthier and happier.
Which bits of your life are you taking personal responsibility for? And which are you delegating to others to sort out? Have you got the balance right?
We all have demanding people in our lives. While we want to care, we also have to look after ourselves.
Assertiveness is very much a question of a right relationship with the self.
When we argue, we try to make ourselves right and the other person wrong. But, instead of helping, this urge to polarise actually perpetuates conflict. True happiness lies in being happy to be neither right nor wrong, to just be.