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.
if greed is far from trading there will be no word about Sell High, Sell high applies when buying at the bottom has been successful,
and an increase occurs then that is success too, if greed controls oneself, then Sell High will never be satisfied.
do not let greed come when trading, then your strategy will be broken.
That's one of the strategies in trading, sell at the peak, everyone wants a lower orice as entry-level and always aiming for the biggest profit that we can earn, although in the process hard to predict it correctly all the time, yet greed could lead to months or years of waiting in order to get a higher price, not a bad thing though.