The best way to learn a language is to speak it. Collaboration and communication are more effective than lonely and silent learning.
Grammarians are not the greatest speakers. It is better to be incorrect and heard than correct and silent.
Langues are very different from the French class you may have experienced. Languages are freedom, intelligence and knowledge. And this is super cool.
Learning a language means taking your future under your control. So you might as well start your learning with a fulfilling method.
'It is only with the heart that one can see rightly' said the Little Prince. We often do much better with the heart. Learning too.