Prosze o poprawienie błędów

Dear Sirs,
I am writing to ask for more information about the International organisation which I saw advertised in the local newspeper. I am polish studnet and I am interested your offers which give a great opportunity to spend a fantastic holiday in different foreign countres but I would like some more details.
Firstly could you send me more information about cost? I wonder if you give reductions for students or maybe you have some special proposes.
Secondly, I would like to know if send my brief is that will do in order to join your club and what exacly my brief should consist.
I am very friendy and adventurer. I study a journalism and travel abroad will be a opportunity for me to gain a new experience. During this holiday I can improve my language skills and I can get to know how live people in another countries. I always dream about travel abroad now thanks to your club my dream can come true.
I look forward to hearing from you.
Your faithfully.

...ask (tutaj mozna 'you' napisac) for more ...
newsPAPER
I am A Polish studENT and I am interested IN your offers...
countrIes
...more information about THE cost?
...special proposes (tego nie rozumie-napisz to po polsku).
...if I send my 'brief' (co tutaj masz na mysli?) is that will do in
order to join your club and what exacly my brief should consist OF.
..friendy and adventurOUS. I studIED journalism...
...PEOPLE LIVE in OTHER countries. I always dreamT about travelLING abroad AND now thanks...

tutaj chciałam zapytać czy jesli wyśle swój zyciorys to będzie wszystko co powinnam zrobić zeby dołączyć do ich klubu i co dokladnie powinno byc zawarte w tym życiorysie. troszkę poplątane :/ ale i tak dziękuje za poświecenie czasu

przepraszam zapomniałam jeszcze wyjaśnić o co mi chodziło w tym special propose, otóż chciałam zapytać czy maja moze jakies specjalne oferty, może poprotu omine to ...

..if I send my brief - to wtedy zle-
zyciorys to CV - ale niewiem czy to tutaj pasuje -
...if I send my CV will that be sufficient to join your club - and what exactly should such a CV contain.

...maybe you have some other proposALS.