Nan,
Here:
https://toptests.co.uk/ They have 9 mock tests you can take over and over and over again to get familiar with the different things on the test. As you get things wrong, make yourself a note of what you got wrong and what the right answer was and keep taking them. It'll become muscle memory, just like it was learning it over here or learning how to use your computer or anything else.
As far as auto vs. manual, I learned how to drive both when I was 15. I like the control a manual gives you (you feel more a part of the car) but I also like the ease of an automatic, especially if you are driving through stop and go traffic or have lots of hills like here in Seattle. When we move over, we'll probably get an automatic for my partner and a manual for me. He wants to learn how to drive a manual as well and wanted me to teach him but, just because I know HOW to drive one doesn't mean I'm a good teacher. I agree with what the others have said, take a couple classes. I think you'll be surprised by the end of even the first one how you do.
Honestly, the hardest part is just starting from a stop. But even then, its just a matter of finding the right amount of gas to give and how fast to let off on the clutch. It's kind of like a dance. People over think it and when the car jerks forward and stalls, they become flustered and think they broke something. But you're just finding that sweat spot between how much gas to give and how much to let off on the clutch. You'll stall the car a number of times, you'll accidentally rev the engine because you're giving it MORE gas but not letting up on the clutch enough. It's expected and part of learning the "feel" of the car. Even after driving manuals for 30 years, I've done it when I've bought or rented a new car. But then after a few times you're like "Ah ok, its just a little bit of this and a little off of that and here we go." And once you get going, its super simple, just a matter of push in the clutch, move the shifter to the next gear, let off of the clutch and give it gas again (simple version
).
I promise you'll be like "This really wasn't as hard as I was thinking it was."