Also, totally a personal experience thing, but I've tended to favor music creation when in "cheerful" head space (usually summer) and gravitate more toward writing projects when in "downer" like conditions (usually winter). They barely overlap, and the pattern has taken me years to notice, but it's there. I've frequently felt like creativity in my realm is not often controllable, but more like an eruption to be harnessed. Thus the discipline and "making time" for hobby-like efforts in the creative realm is where the real effort and hang-ups tend to happen for me.