One of the most important skills to learn as a founder is how to use Mixpanel—especially with a very small sample size. This is not something you can delegate because only you will be obsessed enough to make sure your insights are valid. Almost everyday I see founders get deluded into thinking: A. They have an onboarding problem—that was actually triggered by internal debugging sessions by the devs, or B. Their onboarding is working—but they are not properly tracking logged-out users C. Users are sharing their app—but they are just tracking attempts and not the final send events At the earliest stages, you must be using a patchwork of filters to remove users and constantly be auditing individual sessions to see what is actually happening during apparent drop-off. Whenever I see someone who is a jedi in Mixpanel, I suddenly trust their assumptions 10x more.