If a person has no emotion then they are not human being. Your emotions are directly related to the thoughts inside your brain. You start feeling according to your thoughts. Perception is another important factor. Everybody views universe from their own perspective. A child has a pure and innocent perspective. They have no bias. On the other hand a person with malicious perception will see everybody as their enemy.
A human being is presented with at least two choices. Selfish and Selfless.
In selfish choice, personal gain takes priority and in selfless choice, charity takes priority.
A selfish lifestyle leads to uneducated decisions, fake policies, uppish desires, impossible objectives, and corrupt behavior.
Keep in mind the following to push bad phase away
1. If you can keep your emotions in control you can transform a bad phase into a good phase.
2. Do not take things to your heart. Criticism by others should not bother you in a wrong way.
3. Do not interfere or participate in somebody else's argument.
4. Use your brain instead of heart, if you are feeling angry.
Change is inevitable. Change yourself according to time. Acquire positive perception. A person who is capable of adapting to their circumstances, has best defense mechanism for the bad phase.