Hacker News unfortunately seems to be more and more about depression/psychology and less and less about positive entrepreneurship and tech/programming. I want to be inspired.
Or, you could read some of the articles that aren't interesting to you, as they'll have ideas and problems that might be outside of your immediate experience and view. Who knows, they might directly or indirectly inspire some entrepreneurial idea that wouldn't have occurred to you otherwise.
Keep your eyes and mind open, you never know what problems you might solve.
Rates are similarly high in the US - in 2013 one person died by suicide every 12 minutes.
I'm not sure that entrepreneurs have higher rates of depression or suicidality. I think that depression and suicide are just very very common.