Get to be real good friends with your computer. There are many books that are on the web for free. Don't let the dates fool you. A 1922 book is just as good as a later one for basics. OK, you don't have to use the foot pedal to make it spin around. I have probably 20 or more books and pdf's that I have stumbled across and downloaded. AGI has a whole set of videos on using lathe and mill if you search hard enough. Also look for military training videos. You would be surprised what the US government has released. Most that I have are Navy.
Anytime anyone here on the forum, or says a name on YouTube, write it down and goggle it.
I would also suggest watching Mr Pete videos from when he started. The early information is right on the type of equipment you have.