Positive psychology is really the study of what makes people do well and be happy in a similar way that regular psychology can study regular behaviour and things that can go wrong like depression. It's a bit up to the individual as to which findings they try to use in everyday life. No doubt there's snake oil out there and sound science also. As a field of study it makes sense. After all people want to be successful and happy so why not study what works?
Personally I've tried some stuff with success. CBT type stuff worked when I was a bit depressed - not sure if that's positive but anyhow... I tried some of the gratitude journal type things with moderate results. One thing I'm looking at now is I read somewhere the biggest difference between people who are averagely happy and top 10% is social skills and relationships. I think I got that from http://www.authentichappinessfacts.com/2016/02/happiness-fac...
Personally I've tried some stuff with success. CBT type stuff worked when I was a bit depressed - not sure if that's positive but anyhow... I tried some of the gratitude journal type things with moderate results. One thing I'm looking at now is I read somewhere the biggest difference between people who are averagely happy and top 10% is social skills and relationships. I think I got that from http://www.authentichappinessfacts.com/2016/02/happiness-fac...
which is a kind of garbled summary of http://condor.depaul.edu/hstein/NAMGILES.pdf