In it there are various behaviors that make the market appear to have no clear pattern. They continue to spread their power to dominate it.
There are too many cryptos to mention. The crypto market is also full of games even though the fundamentals are said to be supported by historical data.
I only put my trust in Bitcoin which has a clear pattern throughout time and not in other types of coins even though some coins have been used by the government.
I think that is what you called as volatility or fluctuations. It's normal in financial markets, as there are different factors that affects them and more here in crypto due to how they are built (E.g. their supply is limited, they are decentralized, etc...). Standard cryptos are straight to the point, while the shady ones are the ones who have games. Once you figured out how to play them, that is how can gain a benefit of earning a huge profit out of your not-so-huge investment.
BTC is not a secret anymore and even some governments are already using it. There are other coins which are legit and good, so it's not wrong to try them but always prioritize BTC.