Hey! Welcome to PokéCommunity!
Don't worry, there's no word limit.
You've been playing Pokémon since you were 4? That's pretty impressive, you're a true veteran. I didn't start 'till I was 9.
On this site we have a million sections for Pokémon related topics, and a couple for off-topic discussions. Based on what you said you might enjoy
Fourth Generation discussion,
Hacks Studio (and of course the whole of the
ROM Hacking section if you want to learn how to make them yourself), and
Fan Fiction/Writing. I'm an aspiring author too, believe it or not, so I look forward to reading anything you've written.
Hope you have a fantastic time, and let me know if you have any questions or if you want to chat :)