my strategy now about my past experience from trading bitcoins is to check the price chart, you can predict if the bitcoin price will be high or low using price chart , you will see the changes of bitcoin price in their chart.
example 24high and 24low is:
545.000000usd - 24high
544.000000usd - 24low - the bitcoin price will be getting high.
but if its:
545.000000usd - 24high
530.000000usd - 24low - the price of bitcoins will be getting low.
check if the gap is very long it means the bitcoin will be in low price i hope you'll learn from my guide