Some observations of great opportunities missed & Trading rules

Impliment these rules in the symbols below

After market closes I always see that there were so many great opportunities , but the challenge is how to be able to see them when they present ?!?

All these were symbols from my watch list past few days and out of many just  few gave great entries.

                                 VIMC  my buddy took this short  trade he happen to see it

                                          AXS

                                       HES

                                                HAR

                               MDAS

               Z

                AF

       SINA

                   MOBI

                RPTP

              VIMC

 NBIX fake break out daily ??? Maybe  but late chased entry

       NBIX covered with loss

                      AMED

                         AMBA

                      NQ

             RDUS stopped out 

SGYP  short below 8.80 1 c spread