I will try to stick to the rules of the Anime to keep it as accurate as possible, that includes drawing on the first turn.
I am going to change some of the card effects so if they seem wrong it's probably because they are.
I don't plan on having any romance in this novel, but it could happen at a later date.
Custom cards might come into existence later in the novel for the main characters cards.
I may use some ideas or pieces from other novels. This isn't me trying to take credit for their ideas, they are genuinely good stories and you should go read them in your own time.
If you have the time you and want to read a fantastic fan fic for Yugioh GX then go read Stacking the deck by 0_Jordinio_0, it is such a good read and I highly recommend it.