Please could you give me the connotation of these two phrases:
What is it to you is my business ??
You stick your nose always.
I think you may be looking for:
What is my business to you? (How does this matter to you; this is my concern, not yours.)
You always stick your nose where it doesn't belong. (You get involved in things that don't concern you.)
Your original phrasing is not natural or idiomatic.