Newbie here

[Zinner]

Miles, it is normal for you to get a better idea of the tastes after a couple of sips. In the wine biz, sometimes they say "the first sip is mouthwash."

They mean that sometimes you'll have another taste in your mouth that needs to be cleared. Then with the second sip, you can really taste the wine.

A lot of being able to distinguish the flavors is just learning to focus your attention and remember how things tasted. Like anything, it gets easier with practice.