nNew hHere New Here

Since it's the title of your composition, it's better to capitalize it.

nNew here New here

nI'm New hHere I'm New Here

I'm new here I'm new here

You can add an exclamation mark(!) if you want to sound excited

nNew hHere New Here

Capitalisation for titles

Hi, iI'm knew here, i. I need to learn eEnglish fast , because iI'll be living in the usUS for 1 year , and iI really lack vocabulary, w. Wish me luck! Hi, I'm new here. I need to learn English fast, because I'll be living in the US for 1 year, and I really lack vocabulary. Wish me luck!

Hi, iI’m knew here, i. I need to learn english fast ,quickly because I will be living in the usUS for 1 -year , and i reallyI lack vocabulary, w. Wish me luck! Hi, I’m new here. I need to learn english quickly because I will be living in the US for 1-year and I lack vocabulary. Wish me luck!

Hi, iI'm knew here,! i need to learn english fast , because iI'll be living in the usUS for 1a year , and i really lackneed to work on vocabulary, w. Wish me luck! Hi, I'm new here! i need to learn english fast because I'll be living in the US for a year and really need to work on vocabulary. Wish me luck!

Hi, iI'm knew here, iI need to learn eEnglish fast , because iI'll be living in the usUS for 1a year , and iI really lack the vocabulary, wish me luck! Hi, I'm knew here, I need to learn English fast because I'll be living in the US for a year, and I really lack the vocabulary, wish me luck!

Capitalise the personal pronoun - I - as well as nouns While technically correct, it is more natural to say 'a year' than '1 year'

Hi, iI'm knew here, i. I need to learn eEnglish fast ,quickly/rapidly because iI'll be living in the us for 1 year , and i really lackUnited States/America/United States of America/US/USA for one year/a year. Right now, I don't know a lot of words/don't have a wide range of vocabulary, w. Wish me luck! Hi, I'm new here. I need to learn English quickly/rapidly because I'll be living in the United States/America/United States of America/US/USA for one year/a year. Right now, I don't know a lot of words/don't have a wide range of vocabulary. Wish me luck!

Your sentence is going on and on, so I broke it up into several sentences. I also put similar words or synonyms to give you options of words you want to use. Also, Americans refer to their country in multiple ways. I also suggested different way of phrasing different parts of your sentence to allow you to choose what you want to say.

Hi, iI'm knew here, iI need to learn eEnglish fast , because I will be living in the usUS for 1 year , and iI really lack vocabulary, wish me luck! Hi, I'm knew here, I need to learn English fast , because I will be living in the US for 1 year , and I really lack vocabulary, wish me luck!

The pronoun ''I'' and languages are always capitalized. Example: English.

Hi, iI’m knew here, i. I need to learn english fast , because iI’ll be living in the us for 1 year , and iI really lack vocabulary, w. Wish me luck! Hi, I’m new here. I need to learn english fast, because I’ll be living in the us for 1 year, and I really lack vocabulary. Wish me luck!

I am —> I’m I will —> I’ll Remember the apostrophe (‘) in contractions like those. “I” is always capitalised, but it is the only pronoun that is capitalised. Knew = past tense of ‘know’ New = first time, never seen/used before No need for a space before a comma, only after. I broke the sentence up a little since it was quite long before.