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.
It is important every trader knows about this two things you’ve mentioned because it’ll shape how they will become profitable overtime in trading. The trading market has been a lot full with many traders without any good result to show for their efforts so far in trading. Maximizing profit is also important in trading and anyone that does not know how to utilize that will only take a longer time trading without seeing any significant returns, profits from many trades they’ve taken in the market. Those two aforementioned works hand and in hand and when you’re at a liberty of utilising them both, it becomes a necessity you do it earlier.
I don't think it's all about strategy and technical analysis. It's all about risk management IMO. It's essential to understand the importance of risk management and implement the correct stop-loss orders and diversify investments to protect your capital. It's best to preserve. Don't gamble away your capital. You would be doing that without risk management.
This is also important and many traders overlook it and the results is always a negative result on their capital after losing them to the market due to lack of risk management which should be a top notch observant by any trader. While trying to maximise your wins, one should also put risk management into consideration because they all form how you can become profitable in the end.