typically stops would be 10 pips below (or above) the double top and first target at the start of the retracement, 2nd at 1.272 extension of retracement
ONLY take the trade if its a 1:1 or better risk to reward.
Thats if your ok with a 1:1 risk/reward, you have to know your risk tolerance and understand money management. Im still learning and have been losing money in the process. But my win rate is slowly increasing with the more I learn and i haven't blown my account yet (which is a very small amount of risk capital, i look at it as learning money to learn how to handle psychology of trading real money)