What are the first few steps before getting into trading?

What are the most recommended methods that one could use to Understand trading?

Trading has become fairly popular, as it is now accessible to everyone while also increasing one's income. However, a lack of information can be risky because it might result in losses. This is why, before entering the forex market, one should get a thorough understanding of the subject.

When one first enters the trading game, it is most often challenging to know how to prepare for it. Even if it is an appealing approach to increase profit, it would not be as fruitful as one may imagine without a fundamental understanding of the basics and a few preparations.
How should one prepare before getting into trading?

What are the things to keep in mind when looking for an online course for trading?

Is it really necessary to take a course before getting into trading?