If you're stuck there, then there isn't a whole lot you can do. You have to suck it up and accept the new changes at the store. You get paid by the hour, so when they ask you to do stuff, go at your own pace and get it done.

Someone there has to be the boss and has to direct you in the days tasks, so yes, you have to take orders from someone. As long as you get a break for 15 minutes every 2 hours then you have nothing to complain about, because that is how most work places operate.

Find a new job elsewhere or closer to home if you don't like it. Suck it up, or leave. It's harsh, but I have a boss, and so does everyone else. Yes, it sucks sometimes, but get used to it.