I need a break

I've only been back at my job for a couple of weeks, its something stupid like 8 days, but I already need to get the hell out of here for a few days.
I really hate it here. I hate how rude the other members of staff can be, I hate that the customer's have no respect for females. But mainly I hate that I can't talk about any of this with Jim. His response is just to tell me that I need to cheer up or I need to grow up and its not helpful at all.
I'm trying to find a proper job but I Have to be careful, if anything happens job wise in the next few years then Jim can't go to uni, which he will blame on me.
The relationship isn't great at the best of times but it really doesn't need that stress. I'm too exhausted to deal, work can't even be bothered to give us water which is making me feel even worse. I just want to go back to bed and cry my eyes out. That's all I ever want to do when I actually have any kind of emotion or feeling.