Could you provide some context for the conversation? I think that would help people translate your script in Japanese more easily. Some of the phrases you wrote like "Have you ever thought for ONE SECOND that maybe it's more then just telling me to be myself?" are very difficult to understand by themselves. In addition, some of your sentences are ungrammatical or unnatural like "i have wrote it down on my own." Is English perhaps your second language? You may want to try posting the question again in your native tongue.

I'm not good at English translation, but I gave it a try. Especially, I'm not sure if I really understand the 4th sentence (Have you ever...). What?! なに？ nani? How can you say that to me?! よくそんなことが私に言えるわね！ よく　そんなことが　わたしに　いえるわね！ yoku sonnakotoga watashini ieruwane！ Do you even know how hard it is for me to understand what purpose I have in this world? 自分が生まれてきた目的を知ることがどんなに難しいか、あなたにわかる？ じぶんが　うまれてきた　もくてきを　しることが　どんなに　むずかしいか、あなたに　わかる？ jibunga umaretekita mokutekiwo shirukotoga donnani muzukashiika, anatani wakaru? Have you ever thought for ONE SECOND that maybe it's more then just telling me to be myself? 私らしくっていうこと以外に、なにか一瞬でも考えたことがある？ わたしらしくっていうこと　いがいに、なにか　いっしゅんでも　かんがえたことがある？ watashirashikutte iukoto igaini, nanika isshundemo kangaetakotoga aru? Be myself huh?..... 私らしく、って。 わたしらしく、って。 watashirasiku,tte. HOW THE HELL AM I SUPPOSED TO BE MYSELF?!..... どうすれば私らしくなれるわけ？ どうすれば　わたしらしく　なれるわけ？ dousureba watashirashiku nareruwake? when I have no idea who that person is anymore?... どんな人間か、自分でもわからなくなっているっていうのに。 どんなにんげんか、じぶんでも　わからなくなっているっていうのに。 donna ningenka,jibundemo wakaranakunatteirutte　iunoni. I hope this will be of any help!