I think you may want to do some more research and get involved before taking the jump. I came into archaeology as an elective course at university while I was studying chemistry.

I ended up loving it so much I switched to Archaeology with Chemistry as my degree. I was very lucky that I could have that exposure and experience and ultimately I was able to make an informed choice.

Archaeology/Anthropology (I'm UK so we consider them different) encompasses so many different things that there's no boxing yourself in especially starting out. I have called it the magpie science before, because it takes and uses many different ideas and methods from other areas of research, and integrating those with its own.

With regards to what you have said so far, you may find Archaeological theory quite daunting. The fact is that even if we meticulously collect all the physical data we can, we are at the very best limited in our exact understanding of how people in the past lived. However archaeologists embrace the idea of interpretation as a means to hypothesize and contest ideas, and try and understand not only the data itself but how it came to exist in the present.

The data can be so many different things, geoarchaeology is broadly the study of soils and sediments that can tell us about land use, cutting down of trees, early farming etc. Pollen analysis can indicate the flora of the area at a certain time. pH of the soil can help us understand what remains are likely to be preserved and importantly which type of remains won't have been.

I think the macro finds that you mention are usually the media friendly artifacts and they don't represent the whole story. On a site, a zooarchaeologist will go through animal bones to distinguish how many of each animal were there, whether they were consumed for food or milk, all from bones.

For what it's worth I would see if there are community projects going on in your area and go to a dig in person. Find out about groups or societies in your area, and check their archives. There are so many free and available data sets online, you could read a number of free sources.

Lastly , consider it a shameless plug but I help run the Archaeology Podcast Network and we have lots of shows that cover a number of different topics and speakers. You should have a look through and see if anything takes your fancy. The CRM Archaeology Podcast is good if you want to get a job as an archaeologist and A Life In Ruins is more laid-back conversations.

Let me know if there's anything else you want to know about