This is why on the time or moment that you are experiencing up some negatives into your investment or portfolio then making up some good adjustments when it comes to your current positions of your trading. You can really expect that the market will be basing up on the current condition of Bitcoin. If its bullish then everything or almost coins/tokens in the market will be bullish and vice versa.
It is also difficult to choose a lot in the market, especially for those who do not invest in BTC coins. Yes, as you mentioned above, what really determines the rise and fall of bitcoin is the market demand and market supply, and that is also seen in the daily trading volume. I think it all depends on each individual when it comes to trading. However, it is safe to stay in HODL for the long term.