You’re depressed. Your assumptions are wrong and perseverating on them keeps you depressed. It’s self-preservation mode that’s out of control.
You have to decide to change your perspective and take the steps to claw your way out of the hole you’re in. This includes getting help if you can because it’s hard to do it on your own.
Every thought of “but I can’t” is the depression trying to keep you in the seemingly safe depression (because trying is scary).
The depression lies to you and hugs you like a warm blanket. It tells you everything is bullshit, that people don’t understand, that there’s no use in bothering to try to get up. It lets you believe you have no control. It creates a cocoon for you to isolate in, to filter out anything positive.
The way out is to defy it, angrily if that helps or calmly if that’s more your style. Name the depression, talk to it. Tell it to “fuck off” then go for a walk. Or, tell it to “I don’t need you right now” and wash some dishes. Take small steps and slip out of its grasp if even for a moment.
Gradually, it will weaken and you’ll see it for what it was.