New Business Venture - Need Your Advice!

Hey friends, need your advice! I'm a 20-year-old engineering student, and I've been running my own small online business. However, it's been frustrating since the potential is capped at ₹30,000-₹50,000. I'm more passionate about business and marketing, and I want to explore new opportunities. I'm thinking of starting an event management or event planning business. Has anyone got experience or ideas to share? Or if you have a different business idea that can start with zero investment, I'm all ears!"