The better question might be to ask what are you doing instead and why. It may be that those things are more important to you, or it may be that you are avoiding other issues.
For me, the challenge in understanding my own choices, is understanding the root of those choices. It can help if you have a neutral third party to talk to about why you choose to do X rather than Y, but barring that there are other techniques you can use.
One is to make an appointment to spend 1 hr a week on some project. When I do this I start with a fresh notebook and pick a time either before I go, or after I get home, from the office to spend on this project. Then when the time comes the first hour is dedicated to writing down in the notebook the goal of what I'm trying to do, why I'm trying to do it, and the things that will have to be true before I can achieve that goal. After an hour I close the notebook and go about my life. The only rule is that during that hour I work on the project and nothing else, and if unavoidedly interrupted I make up the time lost that same day.
The things that make that possible are; It is only an hour, same as watching a TV show or reading through the front page, the notebook retains my mental state between sessions so I don't start out wondering what the heck I was doing last week and what needed to be done.
I found that for me what I really hated was spending an hour coming up to speed on a project and then only having a few minutes to work on it. Very unproductive and very demotivating. But with a process to stop and restart a project in hand, it takes away the restart lag and so I can be productive nearly right away (perhaps 10 minutes reviewing my closing notes from the previous session). Also if my check list is good then I have a good idea of how close I am to the goal.
Time is a finite resource, and learning to budget it will serve you well throughout your career.