This is a case of correlation, plus (again) totally unsubstantiated anecdotal claims. Suggesting people use unproven, non-evidence based approaches, to an illness that leads almost a million people a year to take their own lives, is reckless and potentially harmful. You believe NLP "technology" worked for you -- cool. Some people believe taking LSD worked for them -- cool. Some people say L. Ron Hubbard's "technology" has helped them. I won't take that away from them, but if they start pushing it on other, that's deeply wrong.
There's plenty of evidence-based methodologies that work for statistically significant portions of the population; and those are administered by doctors, and professionals.
But where you cross the line is when you start telling other people to do this too, and that it will work. I won't take the fact that you found something helpful in this. People find all sorts of different things helpful. But I firmly believe that you trying to make this sound like a sure thing is immoral and dangerous.