Nah, I'm just an amateur - literally, I love perfume 
Anyone can learn a lot about perfume just by sniffing a lot. Most people have very good noses - describing what we smell is the tricky part. Perfumers train that skill by repeatedly smelling raw materials, perfume accords or reference perfumes. Need an easy accord? Patchouli - rose: it's very common both in niche and mainstream. Another classic simple accord - labdanum - vanilla: amber. Some slightly more complex accords are the chypre accord and the fougere accord. Once you get some of these basics down, roughly classifying and naming perfumes is much easier. You could say fruity-floral is a basic accord too, but usually a fuity-floral has several fruit notes and several floral notes.
I find side-by-side smelling a very useful way to smell, especially among perfumes that are quite similar.
My personal ability to distinguish notes is average or below average. That's not my thing really - I'm after the moods and feelings and images that perfumes can evoke. I love quirky perfumes that dare to be different.