It's kinda hard to set up an exact itinery because the shows don't really follow one after the other. Basically, you want to be in the parking lot at 08:30am, which will put you in the park before 9am when they play the national anthem. If you like the thrill rides, do Kracken and JTA first. From there you can go to Clyde and Seamore.
Eat lunch at 11:30am to avoid the crowds. Even if you are not hungry, by the time you get your food and sit down, you will be.
From there, play it by ear. I'd say the Shamu show would be next, and then you head back to the Key West area at 3pm to watch the trainers feed the dolphins. Then you could watch Mystify.