Here is a prediction that a trader made today. You can see his technical analysis chart here. Make sure to read the comments as well. This chart is showing what is called a falling wedge meaning that there may be a breakout up towards $10.5k plus for BTC. So, what does that mean?
It means that you can trade bounces between short term highs and lows. This is just an example, not an actual "trade," but if you were to get some BTC right now (around $9100 as of this minute), you could then sell it when if it goes to $10.5k, then if it dips again, rinse and repeat. Right now, it is looking like BTC is staying above $8k, though it has been struggling to break through $12k. So, you can try to buy when it's in these low ranges and sell when it pops up. This can be done with other cryptos as well
Buy low and sell high as indicated in my older post...good point