I am a retired professor. Several times when I was teaching, I would observe good students with lots of potential suddenly began failing. When I called them in for a conference, it was almost always something like you are experiencing, regular catter. About the only thing I knew how to do was listen and be supportive, and that seemed to be the best approach. Mudcatters are doing that with you know, and I am sure it will help - if not immediately, at least soon.
There was one other thing I used to do. That was recommend a little paperback book with the unlikely title of "Why Am I Afraid To Tell You Who I Am?" It is not about the situation they were going through, but there were some things there that have always stuck with me, and also did with them. One of the best was ( and I might be paraphrasing somewhat)
"You can never appreciate the view from a mountaintop unless you have walked through the valley to get there."