C Drive keeps filling up and I can't figure out why

The C Drive on my laptop is a total 193 GB that I was able to keep at around 45-50 or so GB free until last year when the space started to fill up by itself. It now normally is around 28-32 gb free usually although briefly it was back up to 40 gb free after a Windows update, then came back down to to 28 gb after some weeks. Restarting the computer usually created some free space again, I'm not sure why.

Its at its lowest now at 20-22 gb free and its starting to concern me. Anything I download or install I put in the D drive, I did a quick check in any case to see if I missed anything there that's taking up too much, but there isn't. I tried to do disk clean up with administrator permission but that at most only detected around 300 mb of unnecessary files to clean up.

I tried Wiztree on some people's recommendations to see what was taking space. I'm not good at reading these sorts of things, so the most I can tell is that:
Windows folder takes up the most space at 55.4 %

Users folder is a total 40.7 GB. The AppData folder is taking up the majority of that at 27.8 (Local - 17.9 gb, Roaming - 8.9 gb, Local Low - 938.7 mb). Local has the Google folder at 11.3 GB so I assume that's an issue here? Roaming has the user date related to an art program I use at 6.4 gb.

Program files takes up 19.9 GB with WindowsApps at 6.3 gb and Steam folder at 4.9 GB, and 5 other folders taking up about 1 GB each. I figure Steam is an issue here but I'd have to check what to do with it so that it doesn't mess up any other data, I otherwise put steam game files in the D folder.

These are the major ones taking up space, should I just go through them individually and figure out what to do delete or should I do something else, or did I miss something else? Should I try some other program than Wiztree to help me out with this. I'm hesitant to touch anything in the case of messing up and deleting something important.

Sorry for the long post, appreciate any advice. And I hope I posted the correct flair.