That pointer about life skills is a rabbit hole for me. 😄 IMHO, a good life is about becoming stronger and using that capacity to have fun. Those capacities have 4 major dimensions: health, wealth, relationships and wisdom. One can then apply survival analysis / calculus of variations model to derive some heuristics : like how should you change your investment - wealth, time etc - as you grow older,

pick 1 and attack it - always worked for me, very simple Of course they are rabbit holes, hence you pick tiny micro habits not become a world class expert