Trading is not about speed, but stability. My current principle: if the market is outside my trading range, I never act impulsively; once inside the range, I only do things within the rules.

I use a system to counteract emotions: look for signals before entering, not rely on feelings; always set stop-losses for each trade; take profits in stages and transfer to cold wallets.
There are three points to cultivate a stable mindset: appropriately stay away from the market to see the trend clearly; maintain a long-term perspective, avoid greed for short-term quick gains; only trade with spare money, not affecting daily life.
No need to watch the market constantly; by sticking to rules and maintaining a calm mindset, you can actually make money.