Always in pairs
Contrast is what makes components visible.
Alone, a wine is just a wine. Beside another, every difference announces itself.
Acidity is hard to identify in isolation and obvious when a crisp white sits next to a soft one. The whole method is built on that: two glasses, one difference at a time.
Writing notes before speaking matters too. Said out loud in company, opinions converge instantly; written down first, you learn what you actually perceived.
And the vocabulary is for describing, not performing. Being able to say a wine is high in acid with firm tannin is more useful in a shop than any amount of poetry.
Contrast is what makes components visible.
Otherwise you inherit someone else's palate.
Small pours, spitting normal, and never before driving.
Twenty minutes, free, on your palate and two bottles to start with.