Hi David. Great post.
I use Personal Kanban myself, and also have a Personal Goal for the future. To find the right abilities i need to learn (achieve), i have drawn a picture of me and my “mentor”, to sketch out the differences between us. This gives me a good illustration of the abilities i need to learn.
Knowing you as a Lean Startup Advisor, don´t you think 3 to 5 years is too long of a periode? How about creating goals for a 3 to 6 month periode?