Becoming a professional trader, one who trades for a living or a firm, requires building a genuine, tested edge and the discipline to execute it.
Begin with deep education in market mechanics, technical and fundamental analysis, and trading psychology. Develop and backtest a strategy until it shows a statistical edge, then prove it with consistent results, ideally over many months on a demo and then a small live account.
Master risk management above all; professionals survive because they protect capital. Keep a detailed journal to refine your process.
Many aspiring pros join proprietary trading firms or pass funded-account challenges to trade larger capital without risking their own. Expect one to three years before consistency, and treat it as a business with realistic income goals, not a get-rich-quick path.