Runing out the space in my mac hd when the files are in onedrive cloud - impossible to work for a month

I have a macbook pro with 1TB and most of my files are in onedrive cloud, but I run out of space, the more I free, the less I have. I moved files to a usb driver but this is not a solution. I keep the cloud so I can use them only when necessary, my disc should not show as used space. The computer is shared then the problems replicate to other users. I went through the folders and despite were all put to free up space, not only the space is not available as it is diminished every day. Could anyone help me? I have a 2.3GHZ 8-core i9 16GB ram and a ssd 17 and I run Catalina 10.15.7 due some applicatications I have to finish a mastering dissertation. Most of files are doc, pdf, jpg, nef and xls. Keep everything simple, no games, only applications for use in photography or at dissertation. MS office, adobe photoshop and lightroom and a paper manager for university research at libraries.