What you are going through is very common, You are not alone. And help is available. Seek guidance from a Psychiatrist and therapy from a Psychologist.
Together they will be able to guide about the nature of Depression you have.
depression has a combination of biological symptoms like fatigue, lack of energy and motivations. Emotional and thought symptoms like, sadness or feeling de motivated not feel like doing much, being easily hurt , over critical of others etc.
Next Steps
Go to a Psychiatrist and a Psychotherapist.
Health Tips
Online video consultation with a trained Psychotherapist is as good as a face to face consult.