I had always thought that the best way to improve my trading was to look for the last dollar to buy and the last dollar to sell, thus maximizing my trading, or at least that was what my limited experience thought.
But the big players do not operate that way, as the best gains with the highest probability of getting the direction right are always with market confirmation provided by price action; we will never know what the minimum to buy or the maximum to sell is, which is why the most appropriate thing is to sell the best segment that offers good profitability.
Imagine a hamburger, where the best part is between the two buns; that is the best segment to trade. Do not look for the last dollar to buy or the last dollar to sell; look for the best segment to trade.