This is me to be the least qualified one, not you, dude.
I think if you would like to study this era, better for you to read about the whole than study every part precisely at first. After you have the main idea, you can start to develop each topic more detail. Like, as your list has included, the foundation and building of Rome, the republic, the caesar, the empire, etc. I would recommend these books:
The Romans, Antony Kamm. Well, the first 3 chapters (The founding of Rome; The republic; the Caesars) are really useful, both brief and precise, you can easily understand. The other chapters are mostly about life of Romans. You can read if you are interested.
The Fall of Rome and the End of Civilization, Bryan Ward-Perkins. It describes the very detail of how the Roman Empire came to a decline. An advance book for further study of the decline of Rome, or maybe you can read it togther with Gibbon's Decline and Fall of the Roman Empire and Peter Heather's Fall of the Roman Empire
Or, if you want some fun while reading, try some children's books. Easy to understand, and have fun with some DIY handicrafts, cooking, drawing and so on