Currently focusing on building native apps using React Native. Finding limitations with the platform and considering dropping the whole thing and start building with Swift and Kotlin instead.
1) You find podcasts about topics you care about
2) You listen and read and try to understand the meaning with the help of translations and the definitions in context of the words in the sentence. (You can click each word to get a definition in context)
3) Over time you mark words as known
That's basically it. You learn with context using content you are interested in. I'm working on adding a SRS to the app and a feature to improve your pronunciation using the language shadowing technique.
And as mentioned, building native iOS and Android apps.