Over-trading is also a common mistake that new traders make. It's essential to gather enough information and calculate the probabilities before making any trade. By doing so, you increase the chances of making profitable trades and avoid losing money.
Using support, middle, and resistance levels as entry points in cryptocurrency trading is a sound strategy. Still, it's essential to do your own research, analyze market trends, and use technical analysis tools to make informed decisions.
Finally, if you're a beginner, it's advisable to start with a small percentage of your total capital and gradually increase your investment as you gain more experience and knowledge. DCA (Dollar-Cost Averaging) is a great way to mitigate risks and invest steadily in the long term.
It's always better to have something in back up so that we can still continue earning and we won't go back to zero, finding good traders again as that can be a hard task and will take us some time hunt them. In your last sentence, you mentioned DCA there but I think this was only applied in investing not trading.