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OP here. Welp. I fucked up. I had trouble focusing because the live view just didn't show me any stars to focus with. I got what I thought was one good shot, but I looked at it on my computer just now and it looks like absolute shit. It looked really good on my camera's view finder, I thought I nailed it. It looks a bit better with noise reduction and slight contrast adjustment. I think the ISO was too high at 6400, I didn't know how to do the thing where you take multiple photos and stitch them together to get rid of noise, I'm sure I wasn't 100% in focus...I just was unprepared and it was harder than I thought to get things ready in pitch black darkness.
Also I really just wanted to enjoy the moment under the stars, looking at the milky way with my own eyes, a very rare opportunity I've never had before. I had a lot of fun with my friends and didn't wanna spend the majority of the time staring down at my camera. It's 2am here and I'm ready to crash though. Thanks for the advice, everyone. I'll get 'em next time (hopefully with a prime lens that can shoot f/1.8 and with more preparation).