Rachel MacTaggart

I am currently planing on applying for the 190 for hairdressing in the NT. Has anybody done this visa? I am using an agent and I have passed stage 1 of my skills assessment through vetassess. I have paid for stage 2 and chosen to do the technical interview. I think this will be in Manchester. Can anybody give me some information on this? I have 6 years experience but obviously I am very nervous. If anybody has already done this and has some tips then I would be very grateful