I don't really know, but is there anywhere that you can gain experience in dog shows etc? I don't know if there are any dog shows around where you live, but here there are plenty of county shows and stuff in the summer, occasionally i've helped at horse shows as a groom (for a friend), and making sure that people know when it's time to enter the collecting ring. I saw people doing that kind of thing for the dog shows too. Just ask on the day, they're usually glad of help. The experience with dogs will be useful when you actually become a dog trainer but i'm no expert in this field, so i could have it all wrong