The 6600 range has been proven to be a strong support. As we can see, lots of long candle shadows here, which means the bears had many attempts to push the price down but most of the time it bounce back up pretty fast.
Bullish divergence also appeared on RSI. First BTC needs to get through the minor resistance range at 6876 - a previous support that turned into resistance. If BTC can manage to push through this, then it will face a bigger challenge at 7254~7345 range - also a previous support that turned into resistance. This resistance is also the neckline of the double bottom pattern, so hopefully BTC can clear this, then we might head to 77xx range.