WHoa! Whoa!
Sounds like you've got a lot on your plate!
For Training Level dressage, the judges are mostly going to be looking at gaits, an accurate pattern and harmony between horse and rider. Submission and impulsion are nice--and the winners will score high in these areas--but if you're first starting out, go in, ride your pattern, stay relaxed, keep your horse relaxed and make sure your circles are round.
Dressage Suitability focus more on the horse and Equitation on the rider. You want the horse to display nice, elastic gaits, self-carriage and obedience. For Equitation, correct seat hands, and use of aids.
For hunter equitation, you incline your upper body slightly forward. THIS DOES NOT MEAN LEAN!! Elbow, arm and reins should make a line to the horse's mouth. Again, correct set, legs and use of aids.
When is this show? Do you currently work with a trainer? If not, I suggest you begin riding lessons. From your previous posts you seem like a very energetic and ambitious person. Unfortunately, you seem to be trying WAY too much. Maybe slow down and focus on one or two things before moving on. I'm not trying to be a naysayer, but I tried competing in endurance rides and first level dressage for several years and ran myself ragged. Now that I just focus on the distance riding, it's easier on me and my horse.
For jumper classes or anything over fences, you WILL need a trainer to get you started, especially if you're not sure what the judges are looking for.