The higher the risks, the higher the returns and also the harder the analyzation and studying. You cannot invest on something that you do not fully understand. You need to allocate your time in researching first before you out something. People are losing money in making investment with bitcoins because they do not consider the risks.
Entering in investment without proper knowledge is a common mistake of investors because their only concern is to earn money. So if something unexpected happen (like the fall of btc after bull run) with their investment they will tend to blame anyone or the ones who introduce it to them due to losses. Knowledge and also patience are important factor in crypto investment, bearish trend doesnt mean the coins you hold dont have chance to recover anymore. It depends on your capability to wait for bull run because it can take months or years.