Okay, where to begin.
First of all, the mechanics need to be fixed. You have a few spelling errors, most of which is using the wrong word. "To" does not equal "too". (The second one means "also", for further reference.) There's also the fact that you need to make more paragraphs. You start a new one whenever someone new speaks.
To me, you could have easily split this chapter into two. Right now, the chapters would be short, but there's ways to fix that. Like the "5000 years ago" part. Why is Hurakio running away? Where and who is he running from? Where is he running to? Where is the Hyper Beam coming from? Where is the light coming from? And then you end the first chapter/prologue with Hurakio running into the light.
The second chapter could begin with Ash and company walking down random route on a normal typical day. Describe the normalcy so that when Team Rocket attacks, it's a shock to the reader. (Maybe. I mean, it is Team Rocket.) Describe the attack so that the reader gets nervous. How does Ash feel when Dawn is captured?
That's really what I see wrong with it. It's just the basics that need touching upon.
Check out
this thread. It's full of advice that might prove to be useful for you.
Though, it is to say that you shouldn't stop writing. Far from it. Just keep practicing writing. You got a story inside of you waiting to come out and only you can get it out. So keep posting and don't let me get you down.