Hi pam, and welcome!
I was 49 too, when diagnosed last May. Initially, the best thing I was given was a book produced by Diabetes UK for newly-diagnosed Type 1's. I followed that up with as many books as I could find in the library, plus a few from amazon. The more information you can find, the better. Anything you don't understand can then be clarified when talking to your healthcare team.
Then, in my experience and I'm sure echoed by many others here, it's a case of patience, trial and error, getting to know how certain foods and activities affect you, how to adjust your insulin when necessary. All this takes time, and you shouldn't expect to have it cracked overnight. But, you will get there!
I'm still very much on a learning curve, but much more confident and informed than I was. These boards have helped enormously, because there's such a range of experience, and everyone is so happy to help.
And remember - there's no such thing as a silly question, so if there's anything you're unsure of, do please ask away.
It's not the greatest thing to happen, but it can be controlled, and what might seem daunting now will become second nature before you know it.🙂