How do you learn to become a dog groomer?

Hi everyone, I'm interested in becoming a dog groomer or perhaps some kind of veterinarian assistant, but I was wondering how you go about becoming qualified for it? I was looking at adult learning courses and there's nothing to do with dog grooming or anything like that. I basically want a job in working with animals but I have no relevant training :( I'm from the UK, in the north west of England and I would just like to know where to start or look, thanks to anyone who has any advice. :)