The phone you had in middle school is in a museum now. Things age fast; values are what age well.

Objects date themselves at a speed that is almost funny. The device that felt essential in seventh grade now sits behind glass with a little card explaining it, and the case you begged for is landfill. Meanwhile nobody has ever looked back and decided that keeping their word went out of style. The things worth building are the ones without a model year.

Look at what you are saving up for or badly want right now. Ask which parts of that list will still matter in six years, and move one hour of effort toward whatever survives the question.