GBPJPY waiting to long on comfirmation level

GBPJPY currently in a wave 4 of wave C .. based on pattern im expection Ending diagonal pattern will occur on wave C.. my trading plan to place buy limit on the cofirmation level with stop loss place at low of wave 2 as stated in the chart.. once wave C completed market will complete B wave in higher degree and drop to make wave C in higer degree... since wave C was a motive wave im expection 5 structure down will occur once GBPJPY completed the wave B in higher degree . TQ