It's great to see this issue addressed here. There is one thing that I think is absent and needs to be discussed here, it's the issue of appropriate boundaries. It's implied above, but never clearly stated.
It's important to have good boundaries especially when engaging in peer support of this type. It's possible to over identify/empathize with the person you're talking to and take on the emotional weight of their situation.
Know what is healthy for you and set sensible boundaries that help you stay balanced and making progress.
Everybody here's got a story to tell
Everybody's been through their own hell
There's nothing too special about getting hurt
Getting over it, that takes the work
- "Duck and Cover" by Glen Phillips