Tell yourself the opposite story of what will happen tomorrow. PMA. You will wow client because you care and because you know your stuff. If you're at 85 percent, you'll be at 99 percent next time. One is a B. The other is an A. Neither are shabby. YOU CAN DO IT! I would hire you. Belief is destiny. Putting off the prep isn't nearly that bad. Telling yourself it will cause something awful is self fulfilling prophesy. You will be prepped enough and drink some coffee if you have to and make it happpen. It will be fun and you will leave it feeling more confident than when you went in.