I want to encourage you to get a great study on the book of Revelation.
All of my favorite teachers have great commentary on the book as well as others studies.
Chuck Missler
Hal Lindsay
Jack Van Impe
Grant Jeffrey has great books that are all laced with the end times and the book of Revelation but I don’t know that he has an actual study or commentary.
The neat thing about the study of Revelation, is it will take you through many other books such as Daniel.
Their sites are over on my Links.