Bitcoin, a buy or a sell?

There has not been a good week from crypto holders, with the prices dropping all over the market and in bitcoin's case, this drop is measuring around 20%.
At the time of writing the main cryptocurrency is trading at 47500 and I expect a drop under 45k recent low.
That being said, in my opinion, rallies above 50k should be sold and only a rise above 55k would put bitcoin in a bullish perspective
I maintain my 42k target for this drop but I would not be surprised if btcusd is dropping even under 40k