Personal idea on USDJPY bearish momentum

The price has broken the HL last night, creating the change of trend from bullishness to bearishness in 1H, but it still remains bullishness in 4H. So, I'm looking for short position at the supply zone. Stop loss is approximately 300 points.

My trading plan could be wrong and inaccurate. Please remind that this is personal idea sharing thoughts market structure analysis.