I just started building my first SaaS, and honestly, I have a lot of questions. I have an idea that solves a problem I personally face, but I'm not sure if enough people would actually pay for it. A few questions for founders who have been through this: How did you validate your SaaS idea before spending months building it? Are there any tools or platforms you recommend for idea validation? What's the biggest mistake first-time SaaS founders make? If you were starting from scratch ...