Crypto trading and investing has many challenges. However some that stand out are;
1. Risk in trading or investing
2. Greed and Fear
3. Profit taking.
I will address the third point in this trade. Making profit is one thing, taking profit is far important. What make some people not to make profit is fear and greed.
Here is a strategy i used in taking profit;
1. Determine the market cap you want the coin to rise to.
2. DCA out at every milestone of the project.
For example, say you bought SOL at $5. You take 50% off after 5x, and take 10% as it goes up.
How do you take profit? Are there other strategies for profit taking?
Sorry, are you asking the forum this question or you are teaching us how to take profit cause your title sounds like you want to teach us and then your write up looks like a question and you even state some idea on how to take profit however, even if i answered your question you may not still see my strategy as something that is good or maybe you can't still hold unto it. Moreover I think you are right to an extent, most people lost or don't make profit because of greed and I think sometimes it is caused by circumstance while sometimes it is natural and fear can't only make one not to make profit but sometimes it help one not to make loss too.
I have seen a situation where someone wanted to invest in a particular project but because of fear of losing his money he stayed off from the project and later he heard that the project he wanted to invest in was a scam project so, sometimes it is good to have fear.