Need Hacking Help!!!!!!!!!!!!!!

[Hacking-Bug]

I never Hacked before.
i what to hack my Pokemon Emerald. (how do i do that?)
I would like to give my self
a huge number of master balls,
Give my self Pokemon from the Pokemon Fire Red and Leaf Green,
and make shiny Pokemon.(of my chose. not all of them),
and all the secret bash items.

thanks for your help.

[Helder]

the pokemon games are hard game to learn to hack because of the DMA, basically the addresses change everytime the game loads. So say you do make a code it more than likely will not work later when you replay the game.