The issue isn’t that you don’t have time, it is that your time isn’t planned; it’s that you have no priorities.
Time, no matter how you look at it, is the most irreplaceable resource anyone can have. What’s lost of it is lost forever. And to use it judiciously, you must prioritize.
Think about it very keenly, weren’t there minutes here and there during your day that you could have used to read at least a chapter of a book? What about the workout you said you’d start at the beginning of the month but never got round to?
If these things are as important as you say they are to you, then it’s time to prioritize them.