Tasting a great strategy? 2/90 days

I am a fundamental trader who relies on economic data, monetary policy, or events that may affect the economy. However, I have come across a 100% technical strategy based on a new style of harmonics that is different from the classics. This strategy promises a high yield and an 80% success rate, which is hard to believe. For this reason, I will test it for 90 days to determine if it is true.

Account: +1.0%
Rate Succes: 78%

29/06/2023
Account: +0.8%
Success Rate: 90%

29/06/2023
Account: +0.2%
Rate Suecces: 66%

AUDNZD: -0.1%
CHFJPY: +0.1%
EURJPY: +0.1%
GBPCHF: +0.1%
GBPJPY: +0.1%
NZDCAD: -0.1%