how others view your situation. Just the statement
"I'm depressed today" does not mean you have clinical depression. Maybe you are just whining, or sad. Even people close to you may not realize your real situation.
I had clinical depression. I tried to hurt myself. I spent time in a mental ward, group therapy. Before you criticize others, find help. A counselor, a doctor. Not all people can recognize the clues, even when it seems obvious to you.
Whatever your situation, find help.
All the best