Undecided questions
how can i say, i am student, hard worker, and friendly person. in Farsi?

من دانش آموز/ دانشجو هستم. من آدم سخت کوش و مهربانی هستم.

hard worker:کوشا،پرتلاش
friendly:صمیمی،گرم ،با محبت

I = من --> man (a is pronounced like fan)
am = هستم --> hastam
student = دانش آموز / دانشجو --> dAneshjoo (A is pronounced like u in Umberella) (if you are in university) or dAnesh Amooz (if you are in school)
hard worker = پرتلاش --> por talAsh
and = و --> va
friendly = خونگرم --> khoon garm
person = آدم / شخص --> Adam
so it will be
Man dAneshjoo / dAnesh Amuz hastam. Man Adam-e- por talAsh va khoon garmi hastam.

for
i = من
you= تو
he and she = او.not difference
we = ما
you=شما that is for plural.e.you are students
they=آنها/آنان