It's being stupid? The RP? It's very friendly to new users, people generally say.
I'm looking over your SU now and I can immediately say that you'll need to beef up your Personality and Appearance a bit more. For appearance, GMs usually want to be able to visualize the character well when they read the text. You're not saying anything about what kind of body the character has now; is he tall? Fat? Dark skinned? Not everyone knows what an Unova Ace Trainer looks like so you should describe a bit more detailed. As for personality, look around to see some other SUs, to get an idea of what GMs usually want to know in that section of the SU.
There are RPs that demands a lot more serious and lengthy SUs than Pokémon Trainer Academy :3 Good luck!