A Butterfly on the EURJPY

I would like to mark this harmonic pattern on my chart because this is beautiful and clear, yes the butterfly is beautiful and the signal is clear which is bullish . As we can see, when the price meets the point D, the price could potentially start to go up. So in my prediction, the price would go down to point D and after that, I expect the price to start going up
How could I know that the price would meet point D?
I checked the MACD and it shows that the price is going down and the cross seems a little bit far from now. So I guess the price may keep going down for a while. Then I make this Gartley plot, which has a point D in the future.