Long on completed Bullish Crab Pattern

Trade is based on the completed Bullish crab pattern. So far the Last week low has not been taken out. The price did pierce lower but failed and moved back . I know this will be a very risky trade ,i would like to take this risk to get the max out of this trade (if it works )
SL and entry on chart
(Note: Please no advises on ratios - Thanks)