The lesson we learn from trading experience and articles we read are quite different, though the lesson from both are very important in trading but the mistakes of some beginners, they get much confidence in trading after learning only from books.
Experience gives the best lessons to traders, which beginners should never be in haste or be so confidence to trade with big amount of money by only gaining knowledge from reading books about trading.
I can help you; it's entirely possible to become a good trader without taking heavy losses at the start. Preparing thoroughly, using demo accounts, and studying well allow for learning without risking money. Confidence also comes from preparation, and a beginner doesn’t necessarily need costly mistakes to improve