The most painful lessons in my trading career—everyone, please avoid making the same mistakes.

When I first entered the trading market, I made so many mistakes that I could fill ten posts.

But based on personal experience, these two errors have the highest costs:

The most common mistake—emotional trading without a plan.
At that time, I would impulsively enter trades whenever I saw price fluctuations, always thinking, "The opportunity is here, buy and sell quickly to make a profit," but inevitably ending up with losses.

The second biggest mistake—spending money on useless courses.
I used to naively believe, "Paying for it means I can learn real skills," but it was all just pretty words with no practical application, and there was no actionable trading system. The worst part wasn’t wasting money, but missing the time that could have been used to gain real knowledge.

Although I’ve stepped into countless pits, these two mistakes cost me the most.

Now I finally understand: trading must be built on a clear system, maintained with discipline, and most importantly, guided by someone who can help you progress in real trading.