New beginnings ofin my life

I am a law student at the university and I hope I am going to graduate at the end of this semester.

That's why I'm really happy so much.

could also say "that's why I'm so happy"

In Turkey, after law school, the graduated students have to do an internship for one year to become a lawyer.

And fFor a long time I have searched for a good law office for my legal internship.

But for thisese kind of offices a successful cvCV is required.

I have had many interviews with the law offices in the last month.

And fFinally, a big and, international law firm accepted my internship application.

Now I'm really on a cloud nine.

Could use various idioms, but I don't think "on a cloud" by itself works in either British or American English.

In the four months, I have to improve my English to a high level.

New bBeginnings of mMy lLife

Titles are mostly capitalized

I am a law student at the university and I hope I am going to graduate at the end of this semester.

That's why I'm really happy so muchso happy.

In Turkey after law school, the graduated students have to do an internship for one year to become a lawyer.

graduated students is also understandable

And for a long time I have searched for a good law office for my legal internship.

But for thisese kinds of offices a successful cvn impressive CV is required.

successful CV also works, but impressive sounds better

And of course ourthe interview has to go well.

our interview works, but I think the interview sounds more natural

I have had many interviews with the law offices in the last month.

And finally a big and international law firm has accepted my internship application.!

Now I'm really on a cloud nine.

cloud nine is idiomatic

In the next four months I have to improve my English to a high level.