Depression is, in fact, hard to beat. The causes are often unclear. Sometimes there's no solution — only coping techniques. That's why we're talking about it.
For many people, one of the hardest parts of fighting depression is acknowledging that you're depressed. Another very hard part is speaking up. Beating the belief that you need to tough it out and solve your own problems. Depression will spoof you with fears about nearly any choice you make, and the choice to speak up can feel like it'll cost you your respect, your career, and your relationships.
Anyone who doesn't grapple with depression knows someone who does. You don't need to do it alone. Reach out to those around you. Consider severing contact with people who're dragging you down. Help erase the cultural stigma that tells you professional help makes you crazy or weak. People may cut you off — depression can make anyone hard to cope with, because it alters behavior, and many people just don't understand depression or its causes. That's part of the tragedy of the disease. But it doesn't make you a bad person.
I see a lot of this every time the topic comes up: 'you know, this advice is naive, it's not that easy.' We know. We've been there! Ultimately, everyone needs to find their own strategies. But there are resources available to you, as long as you have a phone or internet access. You can call a hotline. You can chat with a social worker. It might not do anything for you. But it might help you understand the etiology of your depression, or accept it as a problem that you need to solve now instead of muddling through. And it could lead you to effective therapy or pharmacy that triages or beats the disease.
Like many other scary diseases, depression is — in addition to its other effects — a disease of the ability to not be depressed. It targets and destroys pathways out.
If it makes you angry to see basic advice on depression, because that advice hasn't worked for your situation, that's understandable. But remember that many people don't have any insight into the condition at all — whether it's in themselves, their friends, or their relatives.