Is it really possible to 'Sell High and Buy Low' in this bull run?
In reality, we cannot predict the top and bottom of the market. It is only the game of probabilities which can be predicted from technical analysis but even the most experienced trader cannot sell right at the top. The best thing is to continue to take profits while the price is moving up so that we are in overall profit.
Which is definitely true, the bottom line here was bitcoin was a very volatile currency and expected that anytime its market value may varies in accordance in its demand. Predicted from Technical analysis may be suitable but in reality, as a trader we couldn't sometime follow the mantra of "Sell High and Buy Low" if and even if we really needed to have a profit to be used in sustaining your life needs. But at the moment if you still have the capability to sustain your needs, it is better to take profits, and take advantage about the good market value of bitcoin.