It's random. Pick your outfits wisely.
Darn it, I should have been more specific. I meant to be a part of their civilization too/one of them!
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Granted, but you died on day one. While you were there and alive you saw Pokemon that looked dramatically different from how they appeared in the media. They weren't nearly as cute in the manga, anime, and video games, and it was so bad that it traumatized you.
However,
Since you did die in the Pokemon world, the energy of that world assimilated you, and you became a ghost type pokemon. You don't get to be ghastly this time, but instead a yamask. You reincarnate as a pokemon for a series of lives, without hope of becoming a legendary pokemon. And then after 10 lifetimes as a pokemon, you become a native human to the pokemon world. However, your past lives in that world do not guarantee that you have a deeper understanding of pokemon than humans who always lived in that world. Your first native human life was actually spent being a Team Yell grunt. This is the case until your 10th human incarnation in that world. After every human lifetime, you are reincarnated into a pokemon for 10 more lives (this repeats: 10 lives as a pokemon, then one life as a human). After your human life expires, you start over as a ghost pokemon and must work your way up in terms of becoming a better pokemon (with the exception of your ghost pokemon life) until you can be a human again. You still cannot become a legendary pokemon.
Arceus and Jirachi may have been able to grant you more human lives and fully assimilate you as a genuine being of pokemon world origin (giving you more control over what you may reincarnate as), but you will likely never find them. In the event that you do, then whether or not you will have more control over how you reincarnate will depend on whether you can remember to make such a wish. You will never return to Earth (this one you're on now).
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I wish I was already fluent in Japanese.