I got it!

Congratulations, well done!

Today was a good day for me. Finally I got my score in the English placement test.

That is 100% good English, but a little more normal would be 

"I finally got my score..."

I'm glad to obtain a B2, but I know that I need to keep practicing more every each day. 

"practicing more each day" OR "practicing more every day"

(I think you knew that)

A cool thing to use would be 

"but I know that I need to keep practicing more each and every day."

which suggests repetition

My next goal will be to get a Visa. I'd really like to visit the USA because I know need to talk english in a real context. It helps will help me to find better chances to grow up, in both a personal and professional sense meaning. :D

("both" isn't needed but sounds good when referring to two types of thing)

e.g. She is a singer and an engineer  (fine) -->  She is both a singer and an engineer (*slightly* nicer)

Well done again!

I got it!

Today was a good day for me. Finally I got my score in the English placement test. I'm glad to obtain a B2, but I know that I need to keep practicing more every day.

My next goal will be to get a Visa. I'd really like to visit the USA because I know how to talk English in a real context. It helps me to find a better chance to grow up in a personal and professional meaning. :D