I took evening classes to learn how to work with Lightroom & did a very extensive online course (3 years in total) to learn how to work with Photoshop. It takes time, effort & it's relatively expensive in comparison to free YouTube tutorials, but it was definitely worth it.
It's true that you can find good, free tutorials on YouTube, but you have to sift through a lot of garbage. And they won't teach you everything. With an evening class or online course, they "serve" you everything you need to know in one package. Plus you get feedback & inspiration both from tutors & other students.
I have tried apps like Skillshare too, but basically anyone can be a "teacher" on those (they even asked me a couple of times, that said enough for me :p) & a lot of "classes" are just bad quality.
I would definitely recommend a good online course. The one I did was with a well known centre of adult education in my city that also did language courses etc. Very good quality. Everything was clearly explained & shown through videos & you had to hand in a task each week, which the tutor would give feedback on. On one hand you can just do it at home at your own pace, but on the other you get a little push to do the work each week, which I definitely needed. :p It also pushes you out of your comfort zone a bit, because you learn things that maybe you wouldn't have thought of on your own.
Anyway, I hope this helped a bit, good luck!