Eur /Jpy , Forex market strategy with standard deviation

when the yellow line is above the price and the standard deviation shows a volatility on the bolling band with a candle closure , then these time to put an order in the market.

Forex market is supose to be simple , so i got thi simple technique .

I try to keep my position few weeks .so i would like to eat 300 pips and more .


Sorry for my bad english ;)