The descending channel and 84.74 ceiling resistance are major structures to break in order to get long in size (in my opinion). 400x leverage? Patience might be required. If USD/JPY doesn't break descending channel resistance by year end, it could trade as low as 78. Check out the weekly chart of USD/JPY. Unfortunately I could only go back to mid-2008 on this chart but it still works. Oh and watch JGBs (Japanese Government Bonds).
USD/JPY (US Dollar/Yen pair) - Courtesy of FreeStockCharts.com