Of course, giving mental health advice on the internet can be dangerous. This is of course not a magic recipe (advertising it as such may lead to people thinking "if this doesn't work for me, I'm broken") but I believe for some people your advice might be very helpful.

What you describe is the state of mind I had going out of a long lasting (1y+) depressive phase: "Fuck depression. These thoughts are not me, they are a parasite in my brain trying to kill me and I will identify and fight them."