Someone try to kill me in my dream , what does it means ?

Don't worry, means you might be feeling uncontrolled over some real life situation or emotion. Try to control or balance things in life.

Or most likely it was simply a dream... no meaning.

I wouldn’t worry about that dream if I were you. I’d be more worried if I dreamed about myself trying to kill someone instead.

Dying or being killed in dreams means some aspect of your life may take a change in course or as smkanand replied.