I didn't put much toughs about it regarding life goals and aspirations, but regarding little creative projects, I've found that it's really hard to focus just on one thing because passion for the project progressively drops while ideas for new projects flourish.

I've tried sticking to doing one and only one project, but all what happened is that my passion dropped to the point of zero productivity and I was doing nothing. Can't start a new project because this one isn't finished. Can't finish this project because new ones are more interesting.

I imagine that it's about the same for life, and that the solution is so much more complex.