Size Positioning1

Objective:

Increasing my position size without increasing my risk.

The trade setup must determine position's size, NOT the other way around! 

I googled "size positioning" and found one strategy below. Next, I need to relate this to the risk I am willing to take. I am only willing to risk around 1-2% of my account. 2% only applies for a bloody good trade. There is an upcoming trade that I am eying on and that is AUDUSD. So, 2% of my account ($3000), that would be $60. Since I am using 0.01 contracts to trade, 1 pip would only costs around $0.10.

This means $60 dollars - I could only lose 600 pips. Since, I would normally risk 20 pips to 30 pips, I could only risk 20 contracts x 0.01 (if i am taking risk as 30 pips per contract). 

Ok now the game plan to short AUDUSD. I have to write different scenarios - thorough plan for this. This would determine the success of the trade.