The only answer is to look within and determine which things you value most, using your own subjective values. FWIW, I try to emphasize things involving skills

The only answer is to look within and determine which things you value most, using your own subjective values. FWIW, I try to emphasize things involving skills that are applicable in different areas of my life. I have a foundation of things I build my discretionary day around (exercise being one). Also, I only do those things that I will commit myself to doing every single day (using this as a filter to determine how interested I really am). I believe I can learn anything but only if I do it every day, so rather than dabble in a lot of things I try to have 2-3 things I will commit to doing daily, 7 days a week. There is a quote that I think of often: “people overestimate what they can do in a year but dramatically underestimate what they can do in a decade”. So rather than dabble, what do you want to be great at in a decade?