Help a newcomer with the book

Hay booklovers as title suggest I'm a newcomer to this new world of books and rad two books in total 1. Night at call center(physical book), 2. Dark matter (pdf)

I'm a slow reader like very slow reader but as both of this books were very fast on pace and very gulei type of books I completed those each book in 1, 1.5 months

But I have started this another book after dark matter is thousands splendid suns(pdf) but I don't know I just don't feel to open the book and continue further and since about a month now I haven rad a page of it but when I do, I hardly read 10 pages as a slow reader i either try to run through the page and get to end of story as writer intended or just leave the things

Please help me out how to build a habit of reading and please don't suggest me to get physical book because of multiple reasons I can't get one