Bootable installer USB not booting!

I'm really new to making hackintoshes, so be kind please <3

I followed a guide to making a vanilla laptop. I installed clover to it, and the Mojave installer, but it's not booting.

Secure boot doesn't appear to be an option in my bios. Legacy USB support is on. When choosing my USB in the boot menu, I see my USB light up, then stop and my laptop boots into Lubuntu, making it seem like the USB isn't even bootable.

Specs:

CPU: i5 3210M

GPU: Intel HD Graphics 4000

RAM: 4 GB

Laptop: Lenovo Z580

submitted by /u/davwheat
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