Hey there, Snowy. I have found that valproate has reduced my sensitivity to stimuli that once excited me (e.g. music), and has also had a strong positive influence on my ability to keep a lid on my anger. I no longer impulsively blow a gasket before I have had time to think about a rational response.
I can't testify to how well it has influenced my cycling though. I went through a couple of weeks of stability in mild depression recently, but I started cycling again and swinging to extremes of suicidal lows and severely agitated and sleepless highs. The only thing that changed that could have brought this on is that I cut out junk foods, refined wheat products, sugar, fried foods, etc; and began exercising more seriously. Not quite the response I was expecting.