NYС

New York. I want to write about NY City now. City of Freedom, Iron City, Big Apple, City of Skyscrapers and all of it is about NY. I like NY so much. It's a very big city. One day I want to take a journey to NY. I want to see the longest avenue, Central Park, Broadway, Brooklyn Bridge. I like that it is near the sea. I like the sea. NY consist a lot of blocks. Most famous is Manhattan and Brooklyn of course.
NY is a gate to America. A lot of people begin their acquaintance with NY.

In next time I will write about another American city)
Thanks my friends for your corrections.

NY City (Many Americans will just write NYC!)

New York. I want to write about NY City now. City of Freedom, Iron City, Big Apple, City of Skyscrapers and all of it is about NY. I like NY too so much. It's a very big city. One day I want to have take a journey (or "I want to travel") to NY. I want to see the longest avenue, Central Park, Broadway, Brooklyn bright Bridge. I like that it is near have a the sea. I like the sea. NY consists of a lot of blocks. Most famous is Manhattan and Brooklyn of course.
NY is a gate of to America. A lot of people begin his their acquaintance with NY.

In next time I will write about another American city.
Thanks my friends for your corrections.

*Some notes - Too vs So
"Too" means either 'in excess, beyond what is desirable' as in "My skin is burned because I got too much sun."  It also means "in addition" as in "I liked the book too!"

"So" means, as I believe you were trying to use here 'an unspecified amount.' 

If someone says, "I ate too much cake."  They are saying they had more cake than they should have.
If they say, "I ate so much cake."  They are implying that they had a lot of cake, but not necessarily more than they should have.