It seems you were trying to trade a divergence signal. Divergence works but there is a knack to trading it. I find traders often confuse diverging and divergence. An idicator can be diverging but that does not in itself give you divergence. IF the price keeps dropping your indicator will no longer be diverging and when you "back test" you will NEVER pick these divergence signals up, because there was no divergence.
I find the best divergence plays to make are when the indicator has turned.
EG. MACD line was pointing up and the price was making a new low, wait for the MACD to turn over and give you a point. From that point you can see if divergence has taken place. Will throw up a chart to explain these ramblings, but need to dash out.