How to Clear System Data on Mac

How do I clear my system data on my macbook as it is taking up a huge portion of my storage?

I have already tried checking if my cache folder in ~/library was too big but it is only 7.42 GB. Also, I checked if time machine was on to find snapshots but it seems I have had it off for a while now and I didn't know. Could this be causing issues and should I have it on from now on? Please help I need more storage.

How to Clear System Data on Mac
 
 
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