Have you noticed that something can go wrong without the entire day going wrong?
A bad conversation doesn't need a bad afternoon.
A bad morning doesn't need a bad week.
So learn to contain that moment instead of letting it consume you. Just one bad moment, you cannot allow it to ruin your day or spoil anything that's happening throughout your lifetime.
You must learn how to manage your life, manage your time, manage everything within you and don't let yourself down at any point in time. It might feel as if it's not possible but it is definitely possible, very very possible to live that kind of life.