GBPUSD M15 - Equal corrections + S/R - failed

Weekend I thought about long positions starting from red line, because correction were small and this need at least 38.6% of 'price breathing". Monday I changed my mind because I have seen

• top of channel - nice place to short
  
• S/R zone
  
• equal correction move
  

It failed. No luck with GBPUSD :(
I did not watch this all the time, but I think I could go long when price made small pullback to top of this greenish box...

Anyway - another lessons - remember about bigger picture!