Greetings! Here's a detailed response to your query

1.First, try to calmly understand why your school is steering you towards arts. Are there specific reasons, like limited commerce seats, perceived academic performance, or some other policy? Having a clear understanding of their reasoning will help you formulate a proper response.

2. Prepare a strong case for why you want to pursue commerce. Highlight your interest in business, economics, or finance. If possible, show them your academic record, especially in subjects like math or economics, to demonstrate your capability. Express your long-term career goals and how commerce aligns with them.

3. Your parents/guardians can play a significant role in advocating for your academic choices. They can schedule a meeting with the school principal or relevant authorities to discuss your situation. Their support can add weight to your request.

4. If your school remains firm, consider exploring alternative options. Look into other schools in your area that offer commerce streams. Investigate open schooling options or private candidates, which may provide more flexibility. Consider online courses that can provide you with the commerce education that you are looking for.

5. Regardless of the outcome, maintain your focus on your academic goals. If you end up in the arts stream, you can still pursue commerce-related courses after your 12th grade. Remember, your long-term goals are more important than a temporary setback.

I hope this helps.