Manjaro partition keeps freezing up

Are you sure this is an actual software issue? It could be that the location Manjaro is installed on your drive is going bad. Check out SMART data

How do I do this? I have an SSD by the way, if that matters

I believe like this:

sudo smartctl -a /dev/sdX

Replacing "sdX" with the one of your drive. You can find the one for your drive by doing

lsblk

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