?What did you firmly believe as a new Entrepreneur, only to realize the opposite was true?

When I started my entrepreneurial journey, there were so many things I thought I "knew" for sure. Ideas that seemed like common sense at the time. But reality has a way of turning those beliefs completely around. 😂 I think on of my greatest realization was understanding that having an amazing technology alone doesn’t guarantee success. It’s a long journey from technology to a product that people truly love. What were your biggest realizations that changed a lot for you and could help others?