BTC is in the upper trend line in 4-hour char, which has been respecting for quite a while now. I think this is the time, the rocket high will slowly diminish.
Buying the dip is always the best strategy in the crypto market. I think buying the pullback 19000 to 19400 area is the best buy if the market shows some strong rejection towards the downside, forming a lower swing and engulfing or some double bottom pattern as there is a strong support area, and also the Fibonacci golden 61.8, where I think is a lot of pending and market order placed.