30%-40% drops in BTC happen a lot (check the all time chart)...they come along the the 3x, 4x, 5x run-ups....low supply/liquidity leads to volatility. Keep “Hodling”! ;-)
I do very little trading. I bought 100 shares of a block chain innovator at $8.50. Sold 50 shares at $21.00, 50 shares at $41.00. I'm through....turned $850 into paying my property tax bill.
I'm through at least until I have more understanding of what's going on. When I sold the last 50 shares, it's because it looked like a tangent meeting asymptote situation.