Once a famous successful person, whose name I have forgotten, said that everything except what kept him alive had been nonsense to him.

I consider things of true meaning to be abstract in essence.

So, nothing is wasted if it makes you enjoyable. 

*doesn't mean, not didn't mean. I changed what I was saying then didn't correct my sentece, sorry.

I enjoyed a lot of the time I wasted, but that doesn't mean it made me a better person, or that I don't now wish that I had used (at least some of) that time differently.

I enjoyed a lot of the time I wasted, but that didn't mean it made me a better person or that now I don't wish that I had used (at least some of) that time differently.

Only person who enjoy wasting time could decide that it is wasted. Each of us is owners of our life and our time. What if it's the last day? is the time you enjoy is wasted? Do you know your last day? Just enjoy your time every day.

@Cheryl, Please say something...