Human beings tend to be curious -- as they say, "curiosity killed the cat."
Before you indulge in delicious morsels of curiosity such as the Book of Enoch, I'd say read the whole Catholic Bible, as well as some commentaries on it. You'll go much further in your spiritual life, and you will be much better-equipped as a Catholic.
It may not be as titillating or exciting, but it's certainly better for your soul!
Moreover, there are SO MANY books that would form your mind better than apocryphal literature. True Devotion to Mary, Intro to the Devout Life, countless lives of the saints, and many more. I'm sure people on here could give you a great reading list. (I'm not going to post any links here, or people will think I'm just posting this out of greed, and not concern for souls.)
If you've read hundreds of Catholic books, and have your theology/philosophy/history/catechisim/liturgy/spirituality/apologetics straight, then maybe you should read the Book of Enoch for recreational reading.
Matthew