You should do some research into La Borde. It's an experimental psychiatric clinic in France that's been in operation for decades. Psychotherapist and philosopher Felix Guattari worked there for a long time, and he was one part of the duo that wrote a bunch of really interesting philosophy books alongside Gilles Deleuze, one of which was called Anti-Oedipus, and was an attempt to replace Freudian psychoanalysis with something else that they called schizoanalysis (using schizo in its original ''to split'' definition, rather than a reference to any specific mental health disorder). It's highly divisive, half of the people who read it think it's insane nonsense and the other half think it's genius.
But yeah, people do use some of the philosophy stuff in so called 'real world' applications, even if it's not mainstream.
I think it's important to know your limits. The other thing I'm trained in (after doing my degree in Literature and philosophy) is as a teacher, and at least here in the UK (I can't speak to American teacher training) we do a fair amount of reading into behaviourism, cognitivism, constructivism, cognitive-constructivism, etc, and basically all studies in
teaching at least show that behaviourism is unhelpful and impractical in most classroom settings and doesn't lead to positive attainment. That's the background I have when I say behaviourism is debunked: perhaps this is not the case in clinical treatment, I don't know, but I didn't just make it up to be a jerk