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About me

--"part of" my mom and dad doesn't make as much sense in English.  Are you saying that these are half-siblings or step-siblings?  

I'm already graduated I have a degree in Network Computers and currently I'm studying System Analysis and Development. , I will graduate in December 2019. I work in a department store as IT Assistant. Assistent and I like my job very much of my job because I have many friends there and I often (or "get to") usually travel to nice places for to work.

--In American English we usually say that we "have a degree in XYZ" instead of "graduated in XYZ."  Sometimes we'll say "I graduated with a Bachelor's (degree) in Computer Science."

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In my free time I like to go out with my friends, when I have money, of course. I like to watch movies and series on Netflix., sSometimes I play games, and I also like to study languages idioms by myself my self, like eEnglish and sSpanish. I have some friends from other countries like the  United States, Chile, Argentina and Colombia. They help me a lot with their languages idioms.

--in English, an idiom is a specific grammatical term; also, in English, we always capitalize the name of a language: Chinese, Portuguese,  French, etc. 

I study languages idioms because I want to wanna travel to other countries, to know new cultures, new places, new friends and maybe even one day live in a some diferent  different country. But for now, studying other languages know other idiom will help me in my work to have a better salary at my job.

--Never use "wanna" (or similar "words" like "gonna", "shoulda", "gotta", etc.) in writing unless it's a very informal  message to a friend or family member. I know that's how we pronounce it, but it's not actually a real word and it looks very incorrect in writing.  I'm trying to think of an example of the same thing in Portuguese, but I don't know the language well enough.  :-)

--You could also say "to increase my salary"