Everyone talks about the exciting parts of building a startup. The vision. The late-night breakthroughs. The first paying customer. No one talks about the actual daily experience. You wake up and immediately check three dashboards that all say different things. One says growth is up. One says retention is down. One is just loading forever. You refresh them like they might suddenly agree with each other if you stare hard enough. Then you open Slack or WhatsApp and discover that a “quick que...