When I was trading for the first times back in 2015, I used to dwell on such questions and never got the answer to them, while not making the trade that I should have. I learnt a lesson that you should treat the market prices as numbers, nothing more. If it is going down below your last buy price, buy again at a targeted lower price and set a sell order at higher price once that is executed.

Think too much on reasons behind movements and you will be in a dilemma to trade. In the long term bitcoin will go up, so every opportunity to buy, seize it. Do check S/R levels though before deciding to buy.

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