What I'm looking for to mark that the Bottom is in

I drew a red candle on the right side to indicate the type of candle I'd like to see. Doesn't have to be as big as the candle from the Big Rally. But sizeable in nature. I also would like to see the candle occur in very Oversold RSI territory, much like the top was in when RSI was extremely Overbought. Congruency in these two factors would be a great probability that the bottom is in.