Hey guys, I am a huge fan of history and the classical world in particular. I have a read a huge amount about the fall of the Roman Republic but I am trying to get into the Late Roman Period. I am learning more about and I find the stories of people like Flavius Aetius, Attila the Hun, Zenobia and Diocletian immensely fascinating. I genuinely do not know a lot about the period. So I have a couple questions:
You might find some of the discussions in the FAQ interesting for some of your questions. One got filed in the Roman Empire section . Despite the title, it's an overview of what happened in late antiquity and modern historians' interpretations: 'How accurate is the popular view that "uncontrolled immigration led to the fall of the Roman Empire"?' by /u/Iguana_on_a_stick .
The bigger section is at 'Late Antiquity/Early Medieval/"Dark Ages"'. Please note the first title: "Why does the concept of the end of the Roman Empire in 476 CE persist?" (replies mostly by /u/bitparity ). An even more telling discussion title from elsewhere: "Did Rome Actually Fall?" . There /u/yodatsracist provided a lot of pointers to previous discussions along those lines.
As for books, AskHistorians has a book list at https://www.reddit.com/r/AskHistorians/wiki/books . The section that looks appropriate for you is under Europe / Ancient Rome.
This is not to discourage discussion. Further questions, data, and debate are welcome.