It's difficult when you have obligations to read other things, but finding the right thing helps more than you can imagine.

While knee deep in my A levels, I started reading Do Androids Dream of Electric Sheep? out of curiosity, which I think might have been the last book I read where I genuinely got that sensation of not being able to put it down: where I needed to try to wean myself off of it to do other things and I sat with genuine anxiety and suspense waiting to read another chapter.

When I read LoTR and SoIaF on the other hand? I'm sorry, but I frequently had to hype myself up to get the energy to read them a lot of the time. I wouldn't say those books were bad, but they definitely weren't great reads on top of my school work at the time and in the middle they began to feel much more like an obligation I was putting on myself.

It's all well and good to go for classics or things people have recommended you, but it's easiest if you're hooked on whatever you're reading.