I'm not as rigorous with it as I'd like to be, but I often use my commute time on the way home for it. Just to keep the wheels turning in my head so to speak. I do anki/flashcards sometimes during my break when I'm not talking with Ginny and on my offdays.
Basically, how much time I devote is essentially random (sometimes none, sometimes hours) and how much I feel like doing. I guess the key is to keep doing it regardless. I do think sticking with 1 or 2 until you've mastered those makes more sense though. I don't really have the answers to doing it right, it's just how I do it.

Not anymore! France for the French! Travel is mere luxury-. You can't really immigrate anywhere, so I do not bother learning. The lockdown isn't ending in my lifetime! Au revoir Paris. Je ne veus pas bruller avec vous.

There's plenty of people on here from all around the world whom I'm sure would be happy chat in their mother-tongue. It's a great way to improve your vocabulary.

My plan was to devote 30min a day for language improvement (through listening to podcasts, learning new grammar stuff) + try to watch movies in that language every now and then, buuut I couldn't stick to it. ''Life got in the way'' but I really only have myself to blame for it. I'll try to start over

Studying a language, to me, means watching TV shows in that language. For example I found that my French had become a bit rusty, so I watched "La Forêt", a French TV show.