So I don't get surprised if any changes occurs so suddenly within just few days, it was at 18k then to $19k finally enters +$20k if not carefully analyzed one might thought is already bull.
Try to refer to the bitcoin price way back in July this year and sees the progress up to this date. It seems the bull price is showing some signs there when the price hits $24,000 last August from $18,000 in July. But from there til now, we can conclude that the price is swinging from $18,000-$21,000. No bullish trend, no bearish trend but just a usual market behavior.
Just take things easy and play it slowly but surely.