Throughout the roller coaster of life, we have moments of joy, happiness, contentedness and, of course, low feelings. Whatever the circumstances are, it is your responsibility to recognize what and how you feel throughout your day in order feel what you want to feel.
Most of the dips in life are triggered by people whose opinion we really care about. In these cases, try practicing empathy with the other person.
Here is some wise advise from Thich Nhat Hanh
When we’re hurt there are two ways to think. We can think in a way that makes us angrier and want to retaliate. Or we can try to calm ourselves, touch our compassion and understanding, and give ourselves a peaceful mind. This way also helps us to see that the other person also suffers, and then our anger will dissipate.
Your True Home p. 141