You should do what I did and find more books to listen to. Then maybe a year later you can restart your audiobook list and throw in new ones as you go along.

I'll give you a list of books I started listening to after I finished Harry potter.

Percy Jackson series. Without any spoilers: About a kid that lives with his single mother until he is put in danger because of a misunderstanding with his power and therefore has to be sent away to a camp to train him and protect him. They filled that gap of emptiness so well that I have fonder memories of them than Harry Potter.

The author also made a sort of spin-off that follows the same principles but instead we have Roman mythology instead of Greek. But they interact with Percy.

Then he made another series which is the same formula but with Egyptian mythology.

Hitchhikers guide to the Galaxy. It's just a must read. Incredibly funny and well written. Has good replayability.

Artemis Fowl. Another series that captured me so well that I couldn't put it down. It really is another must read.

The Hunger Games. After Artemis Fowl I was "hungry" eheuheuhe for a new series. This one did not catch me. It felt very boring and the main character was extremely annoying and useless. I get that's the point of the books and that deep down inside she's just a scared girl, not a leader, but why would I want to follow the series through the eyes of someone so boring. There were other characters that I felt would be a much better main character. In the end I just became annoyed. I don't even remember half of the content even though I listened to all of it. No idea how it ends.

The Nightside. Supernatural Private Investigator (Now my favorite genre). My all time absolute favorite book series of all time. Mind you I was listening to these books I've listed in chronological order. Hunger games was boring but it opened me up to a bit more gritty and graphical content. Nightside is 100 times more horrible in that sense but a 1000 times better than Hunger games. I might be a bit biased but it was 2 a.m. when I reached the end of the first book and it's the first and only time I couldn't sleep because I was too afraid. Literally nothing has ever made me so scared to go to sleep except that ending. After the first book it just got more interesting and fun. It does follow a basic formula but it was the first time I was introduced to it so I don't care what people say.

After listening to Nightside series twice (there are 12 book btw.) I came across World of Warcraft books. I'm not going to go far into this but if your into WoW I can explain in a reply.

Then I listened to a bunch of books I didn't really like and I felt my interest begin to slip. Then... drumroll... *The Iron Druid**! Easily my funnest listening experience ever. It's about the last ever living druid making it in modern society. Best part is that he has an Irish wolfhound that he can talk to via druid mindlink and he is just about the funniest most adorable character of all time. I can't explain how much I love this series. I start listening to them every single time the summer comes and it's best with a breakfast on a no-work day. Trust me on this!

Then I reached the end of the latest release and put it on my "must listen to the instant a new one comes out" list and started looking for more. I came across:

Beyonders. It felt slightly above average. Basically an adventure book with interesting characters. Especially one character that I love because he isn't a good or bad kind of character and, even though he was sort of annoying, I still liked that character. It felt too long. All I really remember is that the characters walked a whole hell of a lot.

Then I dared myself to try Game of Thrones but I can't say anything because I couldn't get passed the first chapter. I'm not saying it's bad or good. I just couldn't muster the interest. I'm one of those challenged people who just don't like Game of Thrones :/ Wish I could but I don't.

So I tried Lord of the Rings. I made the horrible mistake of listening to them in my bed. I fell asleep everytime and list my track of the story. I haven't tried to relisten to them.

This is where I find by some freak accident: The Wilde & Chase series. Remember those Indiana Jones type movies? Ancient treasure and lots of shooting. This is the baby of that genre. Just look at the names of the main protagonists. Nina Wilde and Eddie Chase. Very cliché but I don't give a crap. Chase is a former SAS unit that serves now as a bodyguard. Wilde is a struggling student trying to convince professors that she has found the ancient city of Atlantis. Things escalate when a secret organization finds our how close Wilde is to the truth and they send thugs after her. Except a rich Swedish man also heard of the rumors and sends Chase to safely guide Nine Wilde to him. Adventure and awesome sounding fighting scenes make you feel like you actually in an action movie. It's just better because there's no shaky camera :)

Then I listen to a book that covers the back story of Bioshock (A video game) and made me appreciate the game even more.

This is where I get the P.I. cravings again and search amazons audible (Should really try that. Loads of free 30 day trials out there.) and come across Cormoran Strike. At the moment I had no idea that J.K. Rowling! wrote the book but I really love it. The whole mystery and interesting characters and finally finding out who did it, no spoilers don't worry, but the main character is just interesting as hell.

I finish the first one (second one wasn't out at the time.) and reach my second favorite series of all time. It's another supernatural P.I. series!!!

Dresden Files. About a wizard that is living on a paycheck-to-paycheck basis. Occasionally getting some work from Special Investigations department but nothing too big. Then a woman asks for his help and is willing to pay generously. You can guess that things escalate out of control and Harry Dresden has to save everyone. Not only does this series have extremely interesting and well fleshed out characters. Not only are the story captivating. Not only is it about a P.I. that battles ghosts and stuff. But it's read by the greatest reader I've ever had the pleasure of listening to. Yes, I'm saying he's better than Stephen Fry. James Marsters is the reader and I think most would know him from Buffy the Vampire Slayer. Remember when you saw Iron man and you realized that Robert Downey Jr. is basically playing himself because he's prefect for that role? This guy IS Harry Dresden. I can't imagine reading the series. It's just incomplete. He is clearly a professional and it really really starts to shine perfectly when you reach the third book. Listen to this for the love of everything!

I basically just wrote the last 4-5 years of my life and they've easily been my best. Try some of them.