Here's what's important for you (me) to know. In fact, it's crucial.
You don't need to study a language. You don't do it like other school subjects. You leave it up to your brain to sort out automatically.
Stay out of the brain's way! Just feed it with nice (enjoyable, understandable) input and sit back.
All those declension tables in Latin, and the grammar-translation method plus vocabulary lists in French put you completely onto the wrong track!
Remember how much better it went later with German and those 20-minute episodes?