Grow As Entrepreneurs on Instagram: "Mark Cuban says the #1 reason businesses fail is sales. No company can survive without revenue—sales are the lifeline, period. The second reason is lack of preparation. Many founders dive in without researching their industry, competition, profitability, or customer demographics. Without this groundwork, even the best idea can collapse. Finally, success requires relentless effort and sharp thinking. Building a business is hard—if it were easy, everyone would