You can’t have everything
I used to be able to read many more books in my student time. No TV, no gadgets to distract me (actually I was too poor to buy a new TV when the old one was broken). Now that I can buy more books, it becomes a luxury to have the time and energy to read them.
Like the old story goes;
A young guy wants to travel to see the world. He has the time, but not the money. Then he works, he still wants to see the world. Now he has the money but no time. He gets old and retire from work. He has the money and the time, but lacks the will to go.