I'm going to warn you right from the get go - I have NO earthly idea what I'm doing. None. No, really. Quit my day job and been F/T trading since June 2013. Have more money than I started with. Substantially more. Better lucky than good? Guess so.
Software Engineer actively into day-swing trading.
I try to understand the essential variables of price movement at any given point in time.
Then play those and play big with exception handling.