At my job I have the pleasure of working with a talented and relaxed VFX Supervisor. (Two things you MUST have in a VFX partner to retain your sanity.) He and I have had a few big picture what do you want to do in life outside of this job type conversations. In the course of a conversation we had with a third party yesterday, I discovered that my colleague is a fantastic painter. His work really impressed me. In the same conversation he lamented that he didn't have the time he wished he had to paint more.
Later, we were in my office going over work stuff and I mentioned how impressed I was with his paintings. He humbly said thanks and then got wistful and said, "Some day, Julia, someday we'll be able to do what we really want." I looked at him square in the eyes and said, "No, sir, not 'Some day' - October of this year. October I'll be [doing the thing I want to do]!!"
Hearing that sad "Some day" only redoubled my passion to get one of my personal projects done this year. Hell or highwater, I will be doing it.
You have to know, all of you, there is no "some day." You have to pick a date and make it happen. Some day you'll be dead. But other than that, there are specific days on a calendar and you have to pick one and go make stuff.