I have come to believe that trading styles are unique, much like fingerprints. Often, we try to adopt another trader's methodology, but when it doesn't fit our psychological profile/mindset, we experience stress, fatigue and ultimately failure.
IMHO, the key to successful trading is not to adopt a mindset to a trading methodology, but rather to adopt a trading methodology that is compatible with the existing mindset.
For example, I was a failure as a day trader. My mindset did not have the proper balance of risk taking and risk aversion required to thrive. I was too far over to the risk aversion side of the scale (I hated to lose money). But when I switched back to longer-term position trading I was once again successful, stress free and invigorated. Because my mindset is wired that way and the two are compatible.
Finding a compatible methodology to match a given mindset is not easy. It takes exploration and experimentation. There will be many failures along the way. In fact, in many ways it is very similar to dating. (Just cross your fingers and hope it doesn't end in a bitter divorce and custody battle over the kids

). Without this process, however, there is no way to learn the boundaries of your mindset. It is no accident that so many successful traders pay the "Trader's Tuition" (blowout their accounts) one or more times before hitting their stride. It is also no accident that this occupation is so challenging with such a high failure rate.