Dear. First, I must admit that I am not a veteran of Bitcoin either.
On the one hand I heard someone say "Bitcoin is not trading" which means that it is not the main objective to trade with Bitcoin, which does not mean that it cannot be done. In reality, Bitcoin is an asset of the future, since when the corresponding 21 million have been mined, there will be no more, only 21 million and whoever owns Bitcoin will have a strong asset.
Of course, the goal is to save Bitcoin for the future, but price fluctuation sometimes helps us obtain greater liquidity and then a greater amount of Bitcoin. So saving the largest amount is the future goal, but taking advantage of price volatility at a given time is also smart.