A very important indicator to measure whether you are a beginner in trading: holding a zero position.

The so-called "entering the market with no position, making a living with heavy positions," many people learn a bunch of indicators, structures, and strategies, and when they see volatility, they want to jump in; when they see the candlestick move, they think the opportunity has arrived. But true maturity begins when you can accept starting with a "zero position."
After all, the market moves every day, but opportunities worth heavy positions only come a few times a year.
An example I often used during live streams with brothers: trading is like hunting; you need enough patience to wait for the fatal blow. It’s not about chasing sheep on the savannah every day, chasing cows here and there, then seeing a horse and thinking it’s good too—often, it’s all for nothing.
Getting past the "zero position" is when trading truly becomes a beginner.
The hardest part of trading has never been the technical skills; anyone can learn a bit of technique in a few months.
The real difficulty is:
Can you endure when there are no opportunities;
And are you brave enough to jump in when there is one.
The former determines how much you lose; the latter determines how much you can earn.