When btc is very volatile as for these days, i tend to daytrade and buy low and sell higher with a bit of profit each time.
But whenever it goes lower I buy and not selling because want to sell at even higher prices later. I don't believe in day trading because most of the time people lose money.
Day trading is really risky as you never know where price will land at the end of the day and if you buy and if price goes down then you are likely to make loss from it so the best thing is to buy it at the dip and hold it longer until you don't see higher price then your entry price and if you are making good profits then you should sell it without wasting any time.