short text about a hypothetical letter sent by Gatsby (from "The Great Gatsby") to his friend

Dear Alexis,
it was absolutely FANTASTIC. I can't even find the right words to explain it. It's strange but sweet and it was with Daisy. [We don't know what "it" is]

I was nervous that night, I was just a soldier - successful but only a soldier. She was treated as a princess instead.
I would never have thought that she was interested in me, but that night something special happened.
We started to talk: I was a bit embarrassed and scared that my manners weren't enough for her.
But the more we talked, the less embarrassed we were, and in a few hours we were in her room.
I kissed her first and she didn't ward me off. She was so gentle and warm that.. well I don't know if that was love, but I have never felt so happy and strange at the same time.
I wouldn't say that but I think, that night, I fell in love with Daisy, and I would repeat that night again and again, until forever.
Please write me back - I want to know what you think; and if you have some advice, write it in your answer. See you soon Alexis.
Yours, Gatsby.

Very interesting! I corrected your language minimally. I understood everything, despite the mistakes. I also corrected your punctuation.  Commas are used differently in Italian. You cannot separate independent clauses with a comma.  You need a full stop / period, colon or semi-colon. Perhaps you could study this.  Kind regards, Michael 

[Thank you all]