We all waste our time without knowing or we know and that's what we want to do and that's completely fine.
Wasting time is a normal habit for most people but should we stop and start doing stuff instead of wasting our time on things that don't benefit us.
Don't get me wrong sometimes we can and should just do nothing, but it's always better to do something, before you get home and do nothing you should think about what you have to do and do it of course you should rest and have a break but after that think what you have to do even if it's not even close just finish with it and you'll have space to do what you want and you won't wait till the last minute. Think what you need to do and don't leave it for the last second.