I'm falling into depression again and I know that I could tell people but I can't
Why do you feel you can't you tell anyone about your depression?
Nobody will understand.
It is normal not wanting to talk to others about your depression and thinking they do not care about it. But you should seek help if you are depressed.
It makes it worse when people talk about it, I feel like they judge me.
If they love and care for you, then these people will only want to support and assist you. People are willing to help, but you have to let them know first.