Hello there Circa, glad you could join us finally ;P
I came across this site because of Pokemon hacks too! Yes, the tutorials section here is the place for learning how to hack Roms. I was attempting to hack Fire Red too... it can be tough to learn and understand it all, but just stick to it and ask the people here when you get stuck.
Also, if you need someone to help you out with sprites, I'll be glad to assist you! I do a bit of sprite work myself, and really would like to contribute to a hack someday!