It's 1:29 am and I can't sleep,  I'll have a job interview at 11:00 am IN ENGLISH.

I am worried, uuhhh my accent,  the questions uufff everything

I'm learning English,  my problem is that I get nervous and I am afraid of make a mistake.  How can I improve my English? 

My best wishes : )

My name is Claudia,  I'd like to improve my English. .. could you help me please?