This is me

Hi people, my name is Jheniffer, I'm from Brazil, I have[1] 24 years old. If you can me help in the[2] my studies with English, talk [3] me please.
Feel free to correct my sentence.
Okay!!!

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Jhennifer your English is at a good level.  You just have a few small mistakes.  

[1] In English we usually say "I am 24 years old" rather than "I have 24 years old"

[2] There is no need for "the" in this sentence.

[3] Your sentence is understandable here, but it would sound more like a native if you added the word "to".  "Talk to me please" sounds a little more natural than "talk me please".

Overall, however, your English is good and it's very understandable :-)