I can remember back to when I was a kid at grandpa's farm. It was pretty sustainable then and a lot more so before I came along.
There are a lot of things you can Google up on growing vegetables and have a sustainable livestock operation. What I don't see a lot of is about what to do with the the meat and vegetables produced.
My grandparents had a processing house which included canning and storage facilities. (The root cellar was one of my favorite places.) There was a smoke house not far away. A couple of large cast iron hanging pots just outside the back door. These were used for vegetables, scalding chickens, and even making lye soap.
Just about everything seemed to be produced or made on the farm. (I still have grandpa's forge, anvil and tools he made using them.) What impressed me most is how vastly intelligent people had to be to survive being self sustainable.
So I guess what I am trying to say is that you have a lot to learn. My grandparents grew up learning this stuff in everyday life. We have to aquire it some other way.
First get the knowledge, next the infrastructure, then go for it.

Ditto novascapes !

Brings back memories! I had to get up at least by 5:30 AM to do my chores. I went to the smokehouse or saltbox to get meat for breakfast, then to the hen house for eggs. Bring them to Mama so she could start breakfast. Then go slop the hogs, throw out some hay for the cows. Then I got breakfast!

While I was doing my chores, I thought it was pure torture! But when I sat down to eat breakfast, I realized that it was all worth it!

Back to the OP! Try Google or the link below for The Foxfire Books,on the Appalachians of GA. They have a lot of good old time stuff about living off of the land. You can most likely find them in your local library or you can request that they borrow them from a GA library!

I still subscribe to their magazine, but it is mostly old tales from the last of the true Sustainable Farmers!

I used to have the complete set, I gave them to my nephew after reading them many times.

Here is a link that might be useful: foxfire

My dad owns many of the Foxfire books so I will start there

I would suggest that you get a subscription to Acres USA. If you look them up on the web, they offer a free copy. It is directed at sustainable farmers and has loads of good info in it every month!