I don't. Live is hard enough without you constantly pushing yourself and giving yourself a bad conscious for not reaching your goals. Relax, kick back and just do what you feel is fun.
A somewhat boring example is it's unlikely you enjoy doing your university exams, however your state of happiness after completing your degree will be higher than if you had instead done something more enjoyable with your time (e.g. play video games).
Also, reaching a goal is great, but for many goals it's the process of getting there where the real personal growth comes from.
So true!