I am a student in faculty of nursingnursing student.

This correction my be incorrect because I'm confused by the use of faculty. I'm not 100% sure what you're trying to say. If you're going to school to be a nurse, "I am a nursing student" would be a good way to say that.

At first, I didon't know any thing or information about this faculty.about nursing.

Again, I'm not sure about the use of faculty. Do you maybe mean subject? Or career?

I hope to make differentce in my job..

I hope make sure the people change theirto change peoples' minds about nursing.

Nursing in hospitals is really work hard in hospitaleswork and lI am seek to geting the right position.

or "I am trying to get the right position." would be a good way to phrase it.