Yep, the mood you're feeling on a daily basis, affect your playing to a certain degree, and this doesn't just apply to me, the "mood" of the band or musicians I'm playing with affect your playing, whatever it's happy, sad, exciting, morose, boring, inspiring and so on, but for me, technical capabilities asides, whatever mood I'm feeling myself into is almost always doubled with a mental approach as well, not in a deep & profound way
just one of these "thing" that helps me to feel relaxed and enjoying the music, but having said that, it can be sometimes a disaster, even if you were happy in the first place, were the intention do not meet the end result, and that's provides a frustration mood in my book