This is not to be taken as mental health advice (merely an anecdote), but yesterday I was thinking about needing therapy to deal with my issues and I had the thought to use ChatGPT. Wow, it was absolutely incredible in providing me with what I needed.
I think therapy with a professional would be really useful if you have no idea what your problem is, but I think if you're able to put your problem into words then LLMs can be useful.