RSI First Condition Signals

Buy signal with the exit of RSI from the bottom to the top of the number 30.
Sell signal with RSI exit from above 70 to below. The longer the RSI stays above the overbought zone, i.e above 70, and then breaks below 70,
the stronger the sell signal.
The longer the RSI stays below thw oversold zone, i.e. below 70, and then exits above 30,the stronger the buy signal.
And if the RSI exits below the 70 line with a steeper slope, the sell signal is valid.
And if the RSI exits with a steeper slope above 30, the buy signal is valid .