Trading courses and coaches are useless- true or not

How to systematically learn foreign exchange trading?

If you want to make money in trading, what principles do you need to understand?

In the era of bad technical indicators, can you still make money from technology?

Can retail investors make a lot of money by trading? How can I earn it?

What pitfalls do you need to avoid when interviewing for a job in the financial industry?

Everyone is asking traders' questions,Let me ask, if you apply for a job related to this industry, what should you pay attention to? Is this idea advisable? Are there any hard conditions for applying?If you have experience, please help me~