Determining the right level of risk in forex trading involves considering factors such as risk tolerance, trading experience, and financial goals. Traders should use risk management tools such as stop-loss orders and position sizing to limit potential losses. It's also important to avoid overtrading and to stick to a trading plan that fits their risk profile. Successful traders balance risk and reward and aim to achieve consistent profitability over the long term. Continuous monitoring and adjustment of risk levels based on market conditions and personal circumstances are also important.