Hi Carol,
For starters, I’m not very good at languages - rusty intermediate French is the best I do. I also wanted to learn (some) Italian before my March-April trip to Sicily and Rome. There were no courses available through the local university, community college, high schools, or Dante Society, though those might be available to you. I had a good plan to work with Pimsleur and slow news and ultimately online line conversation, but I didn’t carry it out that well, mostly because so much of my planning time was spent in trying to put together flights, Covid test requirements and such, I got discouraged or tired or both!
My point being you need a realistic plan that works for you, given your language facility, time, actual travel plans, etc.
I second the suggestions above to check out the Rick Steves intro “course,” because it’s immediately available and you can start hearing yourself speak a few Italian words. I used the RS Italian phrase book throughout my trip - of course there are many others. Also make sure you know how to use Google Translate; though I don’t like to use it for attempted conversation, it can be very helpful, e.g., reading signs. And I agree You Tube is your friend - in addition to learning-specific videos, there are lots of “site visits” that provide visual as well as sound exposure.
I like the Pimsleur approach for language learning though some do not. I check the CDs out of the public library. It looks like you have time, at 25 minutes/day, to get through parts A and B of the first course. I haven’t tried Duo Lingo- lots of people like it. A search on the Forum should lead you to sites for conversation, too.
I only got to rudimentary level - mostly niceties, nouns and a little menu, but I could have done somewhat better by sticking with it every day. Responding to others was the hardest thing for me and sometimes I answered in French! Repeated “reading” of a detailed map of Rome taught me the many words for “street.” You can focus your learning on your actual travel plans. For example, I knew I would do very little shopping so I was willing to point and say “costa?” Covid required me to learn some vocabulary for the farmacia; when I needed Tylenol and cold medication, though, I used Google to find the Italian equivalents and wrote them out. I also learned numbers by counting out reps and time when exercising in Italian.
In my experience, especially in Sicily, it is not true that “everybody” knows (or admits to knowing) English. But language is no barrier to having a great trip!