Full time trading with crypto can be HARD! However, a lot of new traders fail due to two fundamental flaws.
1 - Not utilizing discounted trading platforms or functions
2 - Not utilizing stop losses (or setting stop losses in the wrong spots)
You may also add entering a position without the confirmation. A lot of noob traders, when the market gets dumped, they'll buy some without confirming a goos entry point. They forgot that the essence of indicators and other tools that helps a trader to be guided in their trades.
Some of them are just brought by the people who hype some particular coins and we cannot blame them to enter in wrong position since as they are new they are prone for a huge fail and for sure on next following days on tradings they will be educated and learn to find some basic ways on how to trade correctly.