I believe the hardest part of operating a real estate business would be building and maintaining a steady flow of clients while earning their trust. Since the real estate market can change over time, there may be periods when sales are slow, making it challenging to generate consistent income. It also requires balancing marketing, client communication, property showings, negotiations, and administrative tasks all at once. To succeed, I would need to stay organized, provide excellent customer service, and remain persistent even during difficult periods.