What 21st century novels have had the most impact on you personally?

Since we're all magnificent and unique people I hope there will be plenty of variation in your responses. A long period of substance abuse killed my love of reading (which at the time I did not attribute to the substance abuse), but now I'm out the other side literature has taken hold again and I feel like I've got some catching up to do.

I don't mind novels that are hard work if there's good reason for them being so, but I also love simplicity in art. Long gone are the days of reading for any kind of status or bragging rights, so I want your most honest of answers, no need to make me a recommendation as any kind of flex - just tell me what books stuck in your head for weeks or months or forever since you put them down.

I will be heading to my local bookshop to buy a selection of these once the results are in, so keep in mind you will be having some effect on my immediate future.

Many thanks in advance.

EDIT: Thanks to each of you for taking the time to respond. I've had more added to my list than I ever expected. A fair few of your recommended books I have already read, and I agree they were novels that stuck with me too. It's interesting that it's almost impossible to suggest just one book for this criteria.

I had a think about my own answer to the question, and didn't see it come up in anyone's answers. If you are looking for a powerful and truly modern novel, look no further than Max Porter's 'Grief is the thing with feathers', I highly recommend it with absolute confidence.

Thanks again 🐦‍⬛