Taking profit really depends on your satisfaction.
As usual, there is never enough for people to satisfy.
X2 of your investment is already a good selling price.
Undoubtedly, x2 is a good indicator, but when this level is reached, internally you always want x3, and then x4.
One thing to learn is you should not be greedy.
Yes, this is so and the main thing is to stop in time, as in gambling.
Don't regret if the crypto you sold pumped higher after that because no one can predict the market. Don't keep checking it then regret everytime you see its price, learn to be contented on the profit you gained. Just think that what if you hold longer then it suddenly crash when you're not monitoring it, then you just missed the opportunity to have bigger gains if you sold already.
What matters is not what is lost, but what is gained.