Quote from harrytrader:
As for difficulties trading is not different from other domains, what is really funny is that because it involves much money people thinks that it deserves more effort than everything else. Like in sport for example, some will prefer to make a 100m competition whereas others would prefer marathon. It will depend on your own capability.
So the choice of scale and frequency of trades depends not only on your will but on your capability (physical, mental) capacity (capital, environment). The more reactive you are the more you can go down on lower scale. Then at a moment you will encounter the ones that are better skilled/capitalized/equipped whatever that makes them better and you must then chose the upper scale. Nevertheless statistically the higher the scale, the higher the variance so the higher your need of capital if your marketing timing is not very good. So as to avoid whipsawing the larger the scale, the less frequent you must trade.