In trading, you have to accept that you have to change your strategy because you cannot keep up with the changing market system by applying the same strategy.
You need to clarify this, for I don't see it appropriate, or should I say I see it misleading. I would agree with you if you are referring to having more than one strategy, and then using them interchangeably when one strategy can't read the current market situation. However, if it is about changing your strategy all the time simply because the market doesn't behave the same way, then you are doing yourself no good, as that is called "style drift" in trading. It is not good.
What strategy does someone need besides to buy low and sell high? My opinion is that if you are not someone who can affect Bitcoin's price via directly or objectively, then I can't imagine what strategy will help you to profit. Maybe it's me who is bad in trading but from my experience, weekly or monthly candles are better indicator than hourly or daily candles. When you look at daily candles, you start to believe that you can predict the price but it's very frequent to something unexpected happen and your technical analysis gets wasted. Just trade once in a while and aim to buy low and sell high, that's how I succeed.