I look at the Daily (short-term)-Weekly-Monthly (long-term) data together. There are, most often, a number of short-term cycles needed to go negative-positive-negative etc before the intermediate-term cycle will change. Then there are a number of intermediate-term cycles before the long-term cycle reverses.

What I try to do for a major "buy" or "sell" decision/recommendation is to see all three cyclic influences change in the same direction.

But RSI is a momentum indicator. It is nothing more. A price series will change trend, and behave (weak to strong) dependent on that instrument's other influences, such as: interest rates, economic and commodity/forex prices, so you need to integrate that (i.e., the trend and cycle behavior of that data) into your thinking too.

So don't think RSI (or its sister, Stochastics) or any other one technical indicator is anything more than the term states: it's an indicator. It's not rocket science.

Also, RSI for a single equity must be analyzed in the context of the cyclic behavior of other peer group equities, which is why I study GICS sector, industry and sub-industry groups too.

Does that help?