4. Stay focused on the long term
This is the most common mistake of new traders in the market. Some of these people intend to trade because of hype or market condition, for example, if we have a bullish market or bull run, that's the time they only trade. Or another example is they tend to stop to trade after how many losing trades.
It just sucks because sometimes they are blaming cryptocurrency or they are telling cryptocurrency is a scam because of their losses.
Newbie traders need to learn a lot more because crypto is so complex,
apart from that deciding to trade at the time of the hype I don't think is a good decision,
because it is precisely when the market is bear that is the right time to buy coins.