I feel for you guys. I made a (so far) career long network and friends in grad school. The opportunities to decompress with compatriots, the chance to bounce ideas off each other, the chance to get help on an analysis, to prep for comprehensive exams...and so much more, are basically non-existent now.
My student is like 80% done with her thesis but hasn't shared a single page with me for review. The deadline to defend is December 15th or she'll have to pay tuition for next semester, and I don't think she is going to make it. I already found her an extra semester of stipend and tuition waiver when she didn't finish in August, I meet with her twice a week. I try to motivate her with positive re-enforcement, I gave her my personal cell number and told her to call me any time. I've gone so far as to write the code for her analysis and for making figures of the results. I keep telling here that I am here for support and to help her be successful not to test her and judge her, but man she is just like crippled with anxiety. I don't know how else to help.