The open divergence has a high risk of failure and the opening half hour is the hardest to trade, but also has some high rewards. It also has high losses......if you get it wrong.
Why not long on the dbl. bottom? because Monday's support of around 9560 was lost at the open .Going long at 9540 gives a 20 point gain on a R/R basis, less 20 point bias in/out= immediate loss.
I can't see your point of No. 2 - when did the price go 100MA +20???? It just "touched" +20 at 16:45....
Yesterday was not easy, with the exception of the ND top for an out, and a chance reversal on apparent weakness, that happened to pay dividends.
You are right to walk away if you get the first rtade wrong. Your self obsevations are correct. DON'T chase a lost trade. Clear the air, walk away,have a cuppa, do something but not a chaser trade. Turn off your trading platform ( remove the temptation) look at the charts, 1 min, 2 min 10 min. Get it clear in your mind just where S&R 's are, both horizontal AND channels.