without prejudice:

"But I am a little bit hesitated"
But I am a little bit hesitant.

"Can I get a job there especially I am from an Iraqi nationality....."
Can I get a job there especially as I am an Iraqi national...
or
Can I get a job there especially as I have Iraqi nationality....
or
Can I get a job there especially as I am from Iraq...

"....is it so difficult?"
....is it very difficult?

"I need an advice please."
I need some advice please.

Sarah - the Supreme Education council of Qatar now requires you to have some sort of teaching qualification besides your initial degree(s).

Regards