I work in a small organisation and have a colleague who is neurodiverse and struggling. It seems to me they are deeply depressed. I don't even know this person particularly well but feel they are crying out for help by over sharing their issues. I am there to listen and offer help where possible but they are really intense and it's starting to impact on my own MH, which isn't great to start with. I have a lot of empathy and I want to help. I don't want to make things harder for them but I don't want to suffer myself as a result being there to listen to their issues. Speaking to their manager would only make matters far worse.
How do I handle this sensitively?