They always jump into the hype or when the price starts to rise because that is the only time that they notice it. When the price drops, they even bother about it, meaning they will not buy it and not treat it as an opportunity to buy. So it is really better to learn first and practice your emotions before investing because there are really ups and downs to it, so you should be ready for whatever the market throws at you.
Emotions are mostly followed by people investing in bitcoin. Just a month back when bitcoin was trading around 16k we see people running away from bitcoin while it was actual time to invest and now when bitcoin is trading at 28k everyone jumping in due to FOMO.
Risks are there in every trading market be it crypto, forex or equity. One must keep this in his mind that there is not always profit in bitcoin. There are chances your investment may struck for indefinite period.