You don't make gain until you have secured your profits and that's why it's important to take profits. Imaginary profits when you haven't sold makes you think the price of your investment can't dip and that's wrong. Bitcoin doesn't move in only one direction as it moves up and down so it's only wise you take profits when the price has reached it highest price for that cycle. Taking profit isn't a wrong thing to do because at some point you'll have to sell your Bitcoin.
It's wiser when you take profits during the bull market as during this time if you sell, you'll get high value for your coins and wait for the market to dip before you invest back into the market then selling during the bear market because you can't hold through the dip any longer.
But how do we know the highest price during the bull season? We'll never know where the bottom is and the top until it's all over. In my opinion, we should take profit when the price reaches the target we set or we should take profit when we feel satisfied with that profit. Absolutely do not be too greedy, it will make us regret.
Yes, basically it is very difficult to know the highest price when the bull run arrives, we can only predict according to the history of previous movements or bull run seasons in the past few years, the rest is only speculation that can bring us to the results of the prediction. But well still it's unlikely that it's right on target maybe even a very small percentage, but right as you say we should always use take profit in every session when the price has touched the specified target and also obviously don't let you forget the stop los there too, because the chance of loss will definitely continue to pursue.
So, I think if the person really has a good plan then maybe greed will not always haunt him because they are very strict with the limits they have created, and if they violate then it's like they are challenging for a big loss. But yes I would say this greed is probably for most of those who have just come and have not really been able to make the right plan, Regret? it is very possible, but it is not too big a problem for the beginning because over time they will definitely make changes.