After learning the first, it is important to learn the second else you will be a trader with a strategy that should work, but no profit to show for it. When you hear of traders who were successfully able flip small account sizes to big ones in a short time, it is not just because of their strategy alone, it is also due to understanding of how to maximize profits and minimize loss.
Maximizing profits is one thing I wanted to learn in trading. After got some profits from trading I have alwasy a tendency to cashout sometimes rather than invest or reroll it as capital on trading again since Ive got plenty of experience losing those profits than cashing them out instead. I like the strategy but isnt those are general advise.
You should stick to what works for you. It's better to cashout your little profits in any trade that is profitable than using maximalize capital that has always led you to losses. Sometimes, traders are greedy and use the strategy that will liquidate them faster than using stop loss to limit their losses. Big profit is tempting and comes with very high risk.