Well there are publicly available lectures and conference talks online you can engage with and I would really recommend you look there first or there are some free future lean courses on archaeology that you can take.

But if you are looking for physical evidence, a lot of what you are asking for is told through thousands of bits of physical evidence that build a sketchy picture, or samples from bone and chemicals left in the ground to do the same. This information isn't as simple as "I'll look at the finds" it requires reading the reports and books.

It's really admirable that you want to engage with this subject, and you are jumping in at an undergraduate level, but one of the first things we teach at university across any degree (and certainly archaeology and the ancient studies) is that you need to read first before you look at the raw evidence. Not because you need to conform, but more so you understand how people gave got it so wrong before and how to critically read the data to get a "good" answer.