Read all the books on my bookshelf

I enjoy buying books and then put them on my own bookshelf. However, I usually read the books which were borrowed from the library. All the books on the bookshelf are seldom been opened. That’s really strange and wasting money. Then, I figure out the reason why I can’t finish reading the books. It is because I keep telling myself that I don’t have enough time.
I want to finish the books on my bookshelf. To achieve this important goal I should accomplish the mission, read one book a month.