Relying on a single indicator can be very dangerous in trading. Many treat indicator divergence as the holy grail in identifying tops or bottoms. Having a bias can be lethal to your longterm trading career as in anything else. Its always best to create combinations of indicators that can highlight different aspects of the price structure.
Is the market over bought or is it actually in a trend? It truly can be in both conditions and seemingly without end. Always remember markets can remain irrational longer than we can remain solvent. These chart illustrates some tips to consider when using indicators with your analysis of price structure. There is a reason they say the trend is your friend! GL