Here’s a good post from AJ on this subject.
Basically, I would recommend that you shouldn’t worry about reading a lot.
In fact, I used to read a lot (for example, maybe 4+ hours per day, finishing a lot of books over a few months). But I found that it was pretty useless. I would recommend that pick like 2-3 books (for example, “Human Action”, “Man, Economy, and State”, and something else), and stick with them really seriously. I mean, I have spent probably 90% of my reading time with either Human Action or Human Nature for the past few months. And I haven’t even spent much time with that either. I’ve been trying to stick more to thinking than reading. Really you don’t have much of a choice in the matter if you’re trying to understand something as dense as those two. Remember, it took Mises like 40+ years to write his magnum opus, and took Hume like 10+ years to write his treatise. You’re not going to get everything out of a book like one of those in 2 years, let alone a few months.
(By the way, I’m also 2 years into Human Action, but I’ve barely understood anything past page 324.)