Cognitive therapy is a bit more than just saying your thoughts to stop or go away.

You’re not wrong, but fundamentally changing the way your brain processes and interacts with the world takes more than just time. It takes an unbelievable amount of effort, therapy, and support. And even then it’s not a guarantee that you’ll be able to maintain it.

So while you’re right, your comment makes it sound much easier than it really is.

Just like building up your muscle, it takes time. Which is why you don't see memes/people saying: "So weak that you can't lift 100kg? just say no, and raise your arms while holding a 100kg weight!"

I mean, logically stopping depressive thoughts is the only way to stop depression, the same way as how lowering the caloric intake is how you get rid of obesity, or lowering the resistance to insulin is how you stop being diabetic type 2. Or how the only way to be someone who lifts 100kg is to actually lift a 100kg weight.

The problem is not that it's incorrect, in fact it's something very obvious... to the point that it's condescending rather than helpful, since it forgets to mention that you need training to reach that goal.

It's not like people don't know that depressive thoughts make them depressed... or calories obese.. or lack of exercise weak.. what they want is advice in how to train themselves, not someone telling them they should "just" stop being the way they are (which is probably something they already keep reminding themselves about, without needing your help for that).

I can understand what you mean to say, I think. For example, cognitive behavioral therapy aims to change the way in which people suffering from depression think in order to cure them. It can be quite effective. However, in many cases with major depression different therapies, trauma treatment or medication is also required. In the worst cases, someone might need electroshocks.

I think the issue is that people with depression and people with eating disorders often get blamed for it and they often blame themselves. They are legitimately ill and it is not their fault, just like having any other condition is not your fault. However, due to society's message of 'just say no' to depressive thoughts or food, they might keep on blaming themselves and feel like they are a failure and should just try harder. This can make them just fall deeper in the pit they are in, instead of getting the treatment they need.

I think the last part is not what you meant, but it sounded a bit that way.