Help with stamp 4

Hi so I was born in 2005 so until last year I had no passport of any sort. So this year I want to be able to work as well as get my citizenship. So I have everything to get my citizenship but I don’t know what the steps I need to take in order to get my stamp 4 in order to work. I have never left the country ever and I’m trying to get my life sorted out . Does anyone know what I would need to get it . Thanks