I learned that using demo accounts is not optional, it is a duty if you take trading seriously. In the demo, I can make mistakes without fear, test strategies, adjust indicators, and understand how the price moves without my money being at stake. There, I refine patience, emotional control, and discipline, which in real trading are expensive when you have not trained them. For me, the demo account is the trader's gym: if you don't train there, in the real market you are just improvising and paying to learn.