1. When I first started, they told me it takes 3-6 months to truly get everything down. Until then, don't be scared to ask questions! Honestly, everyone was where you were once upon a time, and most are happy to help.
2. Honestly? The support cycle is my least favorite position, since I always run out of the stuff I like to do and get stuck with the things I hate, so I spend way too much time doing all the restocking and helping on bar, just because I hate doing the RTD&E restock and such. That's why I'm usually so calm, is that I'm literally procrastinating. I'll get to the stuff I dislike eventually, but until then, I'll be helping you make the 1 drink you have queued.
3. Most things should be date dotted in the store, but don't be afraid to call out a "This lasts x long, right?" while you're restocking. You'll catch baristas who have been working there for years asking the same questions. It just takes time.
4. Follow the sequencing protocol. Also, getting quick takes time! If you're learning how to steam milk, it'll take longer than someone who has been doing it for years. Just give yourself the room to grow and ask questions.

Really, it's all about time. If you're new, it will take 3-6 months for everything to really click, but every day you ask a question or try something yourself, you're helping yourself out. This is a surprisingly specialized job, and it takes time to figure out how it works. Best of luck with Starbucks!

it really does just take time to get everything down. keep practicing and referring to the POS to learn all the drinks. i’m a year and a half in & its become second nature, it just takes a long time before it becomes muscle memory