I hear definitely hear you on that, especially when you have a dozen different interests, it's like there's not enough time to get it all done. That's mostly why I haven't really done any illustrations for over a year actually. Those take a few hours each for me, especially the Manga pages, those would take me a good 8 hours to finish. I could get faster at it but honestly I'm more into music than I am Illustrating. Illustration for me is more of a hobby I do once in a while, music is my main thing.

Don't give up though, sometimes you just have to not think about it and just get it done. 5 minutes here and there goes a long way.