A setup? Market awareness? Patience?
Learn to Program, then back test 10 to 50 years for day trading/long term trading if possible as some markets were not around 50 years ago, more you know what back tests show, more you can accept or decline.
http://quantpedia.com/Links/HistoricalDataWhat is a good source of data?
Thanks
A setup? Market awareness? Patience?

A setup at the daily low and daily high; compare higher (lower) low and higher (lower) high with previous day(s) to identify the market sentiment; patience until prices reach daily low and daily high