As an HR expert, I would recommend that you consider having a conversation with your boss before making any decisions. Firstly, it is important to evaluate your performance and gather evidence of your achievements in the sales role. This will help you build a stronger case when discussing a salary increase or commission adjustment. When approaching the negotiation, focus on the value you bring to the company. Highlight your accomplishments, the positive impact you have made on sales, and how your contributions align with the company's goals. Prepare to present a well-structured argument supported by data or specific examples. Additionally, research the market rates for sales roles in similar SME companies. This will give you a benchmark to compare your current compensation package. If you find that your salary and commission structure are significantly below industry standards, it could strengthen your case for an increase. During the conversation with your boss, remain professional and respectful. Explain your concerns regarding the long working hours and the lack of overtime pay. Emphasize your commitment to the company, but express your desire for a fair and competitive compensation package given your performance and the market conditions. Consider proposing a realistic salary increase or commission adjustment based on your research and the value you bring to the company. Be willing to negotiate and find a middle ground that satisfies both parties. However, prepare yourself for the possibility that your employer may not be able to meet your desired salary increment or commission structure. If this is the case, you should then evaluate your priorities and compare the pros and cons of staying in the role. It might be worth exploring alternative job opportunities where you can achieve better work-life balance and fair compensation. Remember, open communication is key. By discussing your concerns and ambitions with your boss, you have a chance to improve your current situation or make a more informed decision about your future career path.