Flight anxiety isn't about flying. It's about the two hours before. Did I pack everything? How bad is security? What if there's traffic? A backward plan doesn't make those worries disappear. But it replaces "what if" with "when." And that's usually enough.
Two hours early for what? Leaving the house? Arriving at the airport? Getting through security? The generic advice doesn't account for the 30 minutes of packing, the 40-minute drive, or the TSA line that's 15 minutes on Tuesday and 90 minutes on Friday. You need a plan that starts from gate close and works backward through every real step.
Ready Time starts at the one time that's fixed: when the gate closes. From there it subtracts boarding, security buffer, the drive, loading the car, and packing. You get a notification for each step. The first one, "start packing," is the only decision you need to make. Everything after that is just following the plan.