Improve and Enhance

What`s Which is better to say? "I wanna wanted to improve my English" or "I wanna wanted to enhance my English." Thanks.

"I wanted to improve my English" is correct.  Using "enhance" is wrong.  "Enhance" means that you are already good at something and wanted to make it even better.  "Improve" just means to make it better.  If you want to use "enhance" in your sentence, you need to write something more.  For example,

"I wanted to enhance my English by throwing a bit of Latin into it to make it sound more pompous and sarcastic."

Improve and Enhance

What`s better to say? I wanna improve my English or I wanna enhance my English. Thanks.

Here, improve is better than enhance. You might say, 'I want to enhance my knowledge' because it has the sense of making bigger, but 'improve' really means to make better.

Of course, I want to is better than I wanna when you're typing :)

Improve and Enhance

What`s (Which is) better to say? I wanna improve my English or I wanna enhance my English. Thanks.

I want to improve my English.

'Enhance' sounds strange in this sentence.  'Wanna' is considered poor English in the UK.

Improve and Enhance

What`s better to say? I wanna (first let's improve it by gettin' ridda wanna! haha) improve my English or I wanna enhance my English. Thanks.

Emphatically improve; enhance is more 'heighten' or 'intensify', and not used in this context, it really applies to something that is already good.  You might want to enhance your powers of oratory.  Or enhance your awesome good looks .