There are several ways of helping with smiling depression.
Acknowledging the existence of depression
This is the biggest step. The fear of acknowledging that you’ve had a bad friend behind your back for a long time. It will hurt but it needs to happen, negative feelings are not weakness but distress.
Talking to someone you trust
This small step can lead to finally seeing a therapist. Find a friend or someone you can trust to just sit down and talk to. It will help.
Nurture your self-esteem
Start a positivity journal, find a new hobby, or treat yourself to something special! You have to love yourself and take care of yourself before anything else.