Python backtesting short sell trade

TSLA have bad news about Robo taxi
this is catalyst for this short sell

If you check RRG chart
you can see that TSLA is one of the most weakest stock compare with S&P500 benchmark momentum in period of 1 year

also I use Python to backtest this bearish candlestick pattern
I found that by setting stop loss 5% and TP 10%

this candlestick pattern have win rate almost 55% which is good for 2 RR ratio