Should I stay at a job I hate and make it 8 months or leave now that I completed 6 months?

I work retail. It's too stressful for me at times, I can't trust most of my coworkers, management doesn't know what it wants or expects a lot, and can't stand most of the customers that come in. Not to mention that I have evening shift so it's like I have no life and I get kind of anxious of working at a big retail place sometimes for safety reasons... there's many crazy people out there nowadays, think you know what I mean. I got through my 6 months but I wanted to make it at least till August or September to save a bit more of money and because I needed to be leave this place before this event I was planning, and I can't waste two months without working.
Should I stay at a job I hate and make it 8 months or leave now that I completed 6 months?
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