I'm amazed at what can be done in one focused day.
And we all get 24 hours each day.
It can hard to spend all that time on meaningful things, but I think if you gradually quit things you don't want to spend time on, you gradually spend time on more important things. If you systematically eliminate things that are a waste of time, pretty soon you're doing things with at least some value.
Tracking time helps a lot with this. Just jotting down on paper once an hour what you did the last hour or so. Often, when it seems like forever has passed when I'm trying to work out something frustrating, it's only been 5 or 7 minutes. On the other side, a lot of high-stimulation websites, it'll seem like 5 minutes have passed, but it's been three hours.
Try tracking your time sometimes. It's huge. I realized I was spending way too much time following sports, so I quit spectator sports. Haven't been back. Don't miss it.
Instead I read a little more, walk around a little more, connect with people a little more, work a little more, cook a little more - I just spent a little more time on all the things that matter. I figure if you gradually quit bad things, eventually you're spending your time reasonably well. And if you gradually introduce good things and focus on those, then you start doing more and more amazing things.
24 hours is a lot of time. A lot can be done in 24 hours, if you're mindful of where the time is going.