Get yourself a job that cares about your wellbring.

I'm an ex Starbucks employee of two years and I can't express how much of a difference the toxic attitude of corporate made on the job and from what I hear that attitude has only gotten worse. I now work at a small Cafe that doesn't do drive through and that still has about as many people come through in a day as my old Starbucks, o work longer hours and have even less people on the floor with more complex food and like 8 different milk options and do you know how many times we were overwhelmed?
Twice.
And we only had people come up to complain about mistakes three times and once was just because I forgot to grab a pastrie for someone.
It is PART OF MY JOB when I'm up front to slow down people's orders enough that the back doesn't get overwhelmed and I can tell customers that. My boss told me on my first day that if someone was giving me attitude I could come get him and he'd cuss then out of the building. He also told me that if we lose a few customers because we shut our doors on the dot when we close that that was fine.

If you can afford to leave Starbucks and find a place that values it's employees more than just as revenue makers I promise you, it will be worth it.