How to trade in nifty with low risk?

The strategy I am going to discuss today is a trend identifying strategy .It is considered that 70% of time market are non trendy or side wise but 30% time it is trendy .This strategy discuss about how to capture trend in nifty.

I have multiple time back tested tis


The entry setup:

Buy when 8 ema  cross over 20 ema in 15 and 30 minute chart. or buy when 8 ema  and 20 ema cross over in 15 mts and hourly chart or daily charts.

However prior to the setup each of this combination individually should gave a cross over result in loss.That is for example if you are taking position based on crossover in 15 mts and 30 mts.Prior to the cross over the last cross over should result in loss or no profit

Another condition ,if you are taking position when 8ema crossoverd with 20 ema in hourly and 15 minute chart then price in bolinger band on these two charts should move towards higher side and vice versa for short side

The exit in this setup is when price drop below 20 ema in hourly chart

In the below 15 mts cahrt Figure 1 we see a moving average cross over after a false by signal which result in huge move


Figure 2 is the same for bolinger band