Process language in quantity

A language is something that you need to get used to. You can't simply learn the rules and components once, and then expect to be able to use them. You need to put in a lot of practice to internalize everything.

Hours and hours. Volume. Volumes.

And so quantity is what you'll require. Figure out a way that suits that allows you to spend a lot of time enjoyably with the language(s) that you've set your heart on.

Do so heartily. With gusto.