As we can see, the BTC price chart forms an ascending triangle pattern. This is a bullish pattern, as the book said.
But in the larger time frame, BTC is sideway inside the 18k5-20k5 Box.
The 18k5 support level seems strong since we have seen many bounce back from here. This also means that if this support level is broken, it will become a pretty strong resistance.
I advise stepping outside the game and observing the market before deciding. We are closer to the end of this pattern; if the price confirms a breakout of any direction, I will consider putting money in.