You're not alone. I haven't read fiction in years either. I'll probably get some flack for this statement, but personally, I think fiction is a waste of time.
I'm currently in the middle of Ultimate Proof of Creation by Dr. Jason Lisle and just started Church History, 4th ed by Bruce L Shelly, revised by R.L. Hatchett. The Ultimate Proof of Creation is truly a wonderful book. It gives a lot of great evidence both scriptural and scientific on the literal 24 hour days of creation. Moreover, the book touches on logic and logical fallacies, and how to identify them when witnessing to a nonbeliever or believer with a twisted form of biblical truth. Church History is a bit cumbersome. It's used as a text book or required reading in some college theological programs so there is a ton of information to absorb. This one will be a slow read for sure.