There are many kinds of brokers, such as securities brokers, real estate brokers, insurance brokers and futures brokers. The star agent you mentioned, professionally called deductive agent, also needs textual research.

But it's easy to take the exam. Have special school training, and then you can take the qualification examination. It is easy to pass. I don't know which city you are in. Generally, big cities have such training schools. You can apply for the exam by paying tuition, listening to a few classes and reviewing some materials.

But it is not easy to be a star agent, because stars usually find people they know and trust to be their own agents, and even many stars let their families be their own agents. Therefore, we should broaden our communication and know as many talents as possible.

Good luck!