Currently reading

I'm currently reading three books actively. I thought last month that it would be great to reread the Harry Potter series, so I'm continuing with the second book, however, I probably won't finish it this month, because I'd really like to finish Elantris and maybe even the novella (The Emperor's Soul) after. Also I decided to reread the first five books in The Princess Diaries series and then continue on, because I want to read the Royal Wedding so badly.

There are a lot more books I put down and some of them I'm not even sure I will ever finish. For example I haven't read a page from A Discovery of Witches since february. I'm 150 pages in and I just don't care about that book. This is also true to Stray, but I should give it another chance, because for my reading challenge I have to read a book by an author who has the same initials as me and I'm not really interested in her other books (yeah, good reasoning). 1984, Amazonia and The Fill-In Boyfriend I'm sure I'll pick up later, I just wasn't in the mood for them, but I know I will love all three. And lastly there's The Gray Wolf Throne. Well, I liked the first two books and I started to read this several times over the last year, but it just can't hold my attention and these books are too long to waste my time if I'm not loving them so maybe I should just DNF it, but I also want to know how it all ends and I really enjoyed the first two. What should I do?