Hype & Worked Up

I previously said that I might get a job at some grocery place as a cashier. I really thought I was just gonna brushed off by another place but this time it's not true. I'm actually gonna be hired. But it's only because I'm going to be replacing my cousin who'll be a pharmacist technician. That's great, right? Of course I'm happy! But I worry about remembering those 400 4-digit produce codes. Well, I went on http://www.wikihow.com/Memorize-Produce-Codes . It's pretty helpful. So, I'm not as worried because I know how I'll study & remember the codes better. But I'm horrible at remembering codes so...yeah. I know they won't expect me to learn them all in an instant, but I hope they don't expect me to be just as good as my cousin. There's a big difference, I have 0 working experience and she has a good amount of experience. So, from what I heard, as soon as Billy Mohollen calls me in, my training would start. Some lady named Annie will be training me. She seems nice...
I don't wanna stress too much about the future job. Since, school and education is my first priority. That's why I'll only work on weekends.