Whether you should join a study group or study alone for Commerce depends on your personal preferences and learning style. Here are some factors to consider:

1. Collaboration: If you enjoy working with others, discussing concepts, and learning from different perspectives, joining a study group can be beneficial. Group discussions can help clarify doubts, share study resources, and deepen understanding of complex topics.

2. Accountability: Study groups can provide accountability and motivation to stay on track with your studies. When you commit to meeting regularly with a group, it can help you stay focused and disciplined.

3. Time management: Studying alone allows you to have full control over your study schedule. If you prefer flexibility and want to study at your own pace, then studying alone might be a better option.

4. Distractions: Assess your ability to concentrate in a group setting. If you find it challenging to stay focused due to distractions or socializing, studying alone might be more productive for you.

5. Learning style: Consider your preferred learning style. Some individuals learn better by discussing concepts with others, while others prefer quiet and solitary study environments. Reflect on what works best for you.

Ultimately, it may be helpful to try both options and see which one suits you better. You can begin by joining a study group and then decide whether it enhances your learning experience or if you prefer studying alone.