You’re never ready for anything. That doesn’t matter. “Ready” is an illusion. You can’t perfectly predict the future, unexpected things happen, and the marginal unit of preparation decreases in value fast.
I suggest aiming for, conservatively, 75% readiness on any serious task, and 50% on any non-vital one. Those numbers are made-up and therefore meaningless, but here’s what I’m getting at: When you’re preparing to do something – look for a new job, buy a house, have a baby – just focus on being generally competent and adaptable and not on a checklist of impossible goals.
Go first, then you’ll get more ready as you iterate. An hour of doing will give you more readiness for the next hour than a week of planning would have given you.
Think about what you’re planning for right now. What things are on the horizon that you’re still in the preparation or even decision-making phase for? What are you “thinking about” doing, or perhaps even hoping for?
Just do that thing. Badly, but today. Then better tomorrow.