One advice I always give to young people is that no experience is a waste. Try your hand at whatever your heart leads you to do.

No time is wasted time

Time you enjoy wasting is not wasted time.

Time spent enjoying yourself is never time wasted.

As long as you are doing what you want, it's not a waste of time.

Nothing goes really to waste if you're determined to learn.

Nothing in life is ever wasted, especially steps taken towards truth.

Well, all I know is this — nothing you ever learn is really wasted, and will sometime be used.

There is no way of wasting time. Because what is time for, except to be wasted?

Nothing in childhood is ever wasted.

No life is a waste. The only time we waste is the time we spend thinking we are alone.

You have all the time in the world, but don’t waste a moment.

No education is ever wasted and everything you learn is helpful in acting.

The truth, then is that spending at least some of your leisure time "wastefully", focused solely on the pleasure of the experience, is the only way not to waste it - to be truly at leisure rather than covertly engaged in future-focused self-improvement.