Oh hello there! and welcome to PC! it's great to meet you.
Ooh, that sounds really intreresting. Sounds like you're up for a really tough task, making a ROM Hack is something that takes a lot of time, but the results can be just amazing. Our ROM Hacking section has a lot of tools and tutorials that you saw already. But, PC is more than ROM Hacking, we really have a lot of cool sections out here, and I'm sure that you're going to find something that catches your eye.
I really wish you luck with all of your projects, I hope you have a lot of fun here with us! :)