Angeleyes, you're definitely not too old to start grooming your dog yourself and enrolling in a class. From my experience with groomers, I decided to groom them myself and although we've made many mistakes, they all grew back out, lol. And I love the quality time that you get with the dogs.
You can teach yourself from videos on youtube and information here on YT or you can pay for a class. Personally, I'm not interested in grooming other types of dogs, so the classes weren't worth it for me. Yorkie's hair is like human hair and I cut it like it. The classes wouldn't have hurt though.
