Sorry to post another question. Don't mean to hog this great Forum.

I've been trying to free up some Hard Drive space as my old iMac is bursting at the seams! It only has 20 GB space left on a 1 TB drive. I've transferred many of my graphic design files to my external hard drive to ACCESS them from there. Thought I could WORK them from the EHD by rebooting from the EHD cause I cloned the OSX10.14.6. (I cannot upgrade OS further otherwise I cannot use my Adobe CS6 files over past 25 years) But wow! Is that a slow process. Onto to PLAN B.

Now I am trying to remove any unnecessary files from my iMac hoping for a bit more space. Here is a list of folders with the sizes. Any other things I can remove to free up space?
DROPBOX (current jobs) - 21 GB
APPLICATIONS Folder - 23 GB
DOWNLOADS - 0. Removed everything.
PICTURES - 91 GB. Not sure why this is so large as I store my photos on iCloud.
MUSIC - 6 GB
MOVIES (video clips) - 56 GB. Are these different than my video clips on Apple Photos?
iCLOUD DRIVE - 188 mb (not a problem, me thinks?)
my WORK folder - 38 GB. design work files. I transfered as much as I could.
HOME - 924 GB.
This is obviously the largest. Have no idea what I can remove here or where those files are.
Can you please give my suggestions?