As far as efficiency is concerned an intraday trader (day or swing) may be prudent to simply attend to price action and one of the following EMA sets:
2,4
5,8
7,11
9,16,
where, in general, there is an inverse relationship between the size of the EMAs and the chart time frame, with the shortest time frame 15 min and the longest 120 min.
If one wants, watch STO for a hint of directional changes to come.
Stay as calm as possible during the process. Exit at the end of the day if comfortable sleep is an issue.