A practical, evidence based system for traders who oversize under pressure and want a consistent, repeatable risk per idea framework. It defines true risk per idea, translates it into precise position sizes across instruments, builds pre trade and in trade decision protocols, and enforces discipline with checklists, dashboards, and post trade reviews. It includes sizing formulas, volatility aware adjustments, playbooks for news and high stress conditions, and case studies showing reduced drawdowns and steadier equity curves.