The way I do it requires over an hour into the day. Let me recommend that when you get through your present traumas that you take the time every day to describe the shape of the day in an algorithm and test it. That will keep you from posting responses to certifiable loonies on ET.
We at least you're not nuts. Nuts would've been to simply take the last trade at the time you authored this thread. You went 1.0 point otm. Can I buy the algo on layaway?
Makes sense, if you have the chops to pull it off. I must admit that over time I became exhausted with the prospect of modeling days like yesterday, for example. Chop that gives way to trend and trend to chop is the bane of my existence. Instead, I found it easier to just sit out of the market on certain days based on what happens early in certain correlated instruments. I've been long today for the entire day. Replying to certifiable loons is the only way I don't become one myself out of boredom.
A lovely day, yesterday. But modelable for S/R purposes. Today was indeed sweet. But I got out too early.