Timewasters

Going over the past few years of my life I realized that there were so many things I spent my time doing that were complete and total blatant timewasters. Such as surfing, chatting online or on the phone, writing, doing layout for imaginary things, blogging, reading...
But then those things have each effected me in profound ways. Moreso than the things I did that make logical, forward-thinking sense, such as school.
So what are the things that classify as real timewasters? Things that REALLY have no bearing on life? Or things that make you the worse off for them? (The latter is way too subjective to draw a line against, anyway). Because I can't think of anything I've done excessively that didn't have any sort of effect on my life.
So when people tell you to eliminate timewasters, do they mean adults? Cause teenagers thrive, learn and grow out of timewasters. Is that the way it should be?

This blog is a total timewaster.

Word.