I'm going to guess that you actually meant to title the thread "Journey to A Master" and not "First Pokemon".
Are you going to do something more with this story than just a rushed retelling of the Pokemon anime episodes? Right now, this is very bare-bones, and there's nothing really a person can get from your fanfic that they can get from watching the first fifteen minutes of the first episode. If you want to do a retelling, you should do something with it to make it your own. Expand on canon events, add some humor, or something different to mark it as your own.
The grammar and spelling of this is also holding your story back. Right in your first sentence, the name of your main character isn't capitalized when it should be. It should be "Ash Ketchum" every time. Same with Delia, Gary, Professor Oak, and Pikachu, since that's the Pokemon's name.
There are many other mistakes made in this story. One part that I'm really stuck on is
right before he starts his journey his lovely mother delia brings him his traveling clothes and underwear she's be careful honey! and don't forget to change your underwear on the other pikachu doesn't like to to be in his pokemon so at his free will stays out.
I'm guessing that she's saying "Be careful, honey! Don't forget to change your underwear! One other thing, Pikachu doesn't like to be in his Poke ball, so he stays out on his own free will." Right now, it seems like Delia is telling Ash to change the underwear on his other Pikachu, who doesn't like being in Pokemon.
A few of these problems could be caught between spell-check ("churping" would then become "chirping") and reading your story out loud before you post it to the forums. If you need more help, someone might be willing to read over your story before you post it to help find mistakes, and you can always ask questions here.