This chart shows how 2018 historic decline fractal is related to current case we have. If fractal is the right one, then I'd suggest to wait untill decline is over and to accumulate as the price stabilizes inside green zone.
Mind the long-term demand zone which is based on support parallel trendlines dragged from lowest points with its specific angle.
I'd long whenever price falls inside green area or breaks out above triangular formation.
One of the most pessimistic scenarios in which I do not believe because the market deviation of decline is quite serious. However, I take it into consideration to some extent for long-term trades, because time fibs play significant role in identifying the common cycles and estimating their reversals points on time scale.
Fib multi-target and reversal levels "matrix". Time fibs are set to golden ratio based on declining wave 20K to 3K (2018-2019).
Zoom out to see further potential target zones in case of supposed bullrun.