I will never give up

Keep doing my best no matter how much difficult challenge is !!!!!!!!!!!!! Never give up !!!!!!!!!!!! I will become a pride of my family . I promise !!!!
help me to fix my mistakes. I wanna improve my english skill so much. thanks lot of ^^

I will never give up

I will keep doing my best no matter how much difficult the challenge is !!!!!!!!!!!!!  I will never give up !!!!!!!!!!!! I will become the  pride of my family . I promise !!!!
Please help me to fix my mistakes. I wanna want to improve my English skill so much. Thanks  a lot of ^^

wanna is a word that you might hear an English speaker say. If is a running together of the sounds "want" and "to" so it sounds like wanna.

You should avoid using this term as it will make you sound uneducated to most English speakers.

I have put "please" before "help me to fix my mistakes" as that makes the sentence into a polite request for help.

This sentence "I wanna improve my english skill so much" is ambiguous.

You could be saying

"I have a great desire to improve my current level of English"

or

"I want to have a high level of English speaking and writing skills"

Use an initial capital letter when you write a proper name. English not english.