Don't really have a mental illness, though. Or at the very least, I've never been properly diagnosed with it (yet).
However, I could be talking about my personal struggles: my anxiety, my poor social skills, my low sefl-esteem... I think that could work too. What do you guys think?

A day in the life of, I'm not sure it could work... very little happens in my life, I don't think it's interesting for anyone to read. I, myself, would get bored to write it. Unless we're talking about personal issues, like I said above.