D.B.
HI,
Glad to hear the update on your life. I am so happy you are taking time for yourself and that the boss was so cooperative. I'm happy you've made friends for yourself and are starting to think about what YOU need, after so many years burning out and taking care of 3 generations of family members.
I'm an experienced Spanish teacher - I used to teach middle schoolers, now I tutor mostly adults (because they want to be there) and occasionally a teen (but only if they want to be there and not if the parents are pushing/punishing them). I don't know of apps like what you mention, but I don't have a lot of experience with apps anyway. What I can say is that, if you find something, it will ONLY word if you are an auditory learner. I think you could learn individual words and some individual phrases ("green - verde" and "thank you - gracias" and so on), but then what? How do you string them together? After you ask someone a question or make a statement to them, how would you decipher the response? Most people are at least partly visual learners, which means using a book or a website or direct interaction with a human so you can decipher facial expressions and helpful gestures. If you are not visual at all, maybe you could do it by listening. But I think you should use that only as getting a start, and not as getting yourself to the level of conversing. Otherwise you'll be frustrated.
Also, pay attention to the native speakers and make sure they are from the area you think you might travel to or using the same accent as the people you'll run into and speak with. Learning Spanish from a Spaniard is totally different from learning from a Mexican - in fact, a friend of mine who was raised in Puerto Rico and is fully bilingual (Spanish as first language, then English) just traveled to Spain on business, and even he had a tough time. Same goes for French in Canada, France or Haiti. And so on.
Finally, consider enjoying that hour of downtime when you don't really have to do anything on top of getting ready for work. You have spent decades multi-tasking and never taking a moment to breathe or just let your thoughts wander. You might consider doing just one thing at a time for now. That hour that you stop and have a drink at night? Take some of that in the morning, have a cup of coffee, and sit and watch the trees leafing out or the birds at the feeder.