every language should be learned with a specific purpose in mind

for example i studied German to understand the lyrics in industrial music

i studied French to understand the dialogue in romantic movies

your studies should be targeting that specific context

you can't be fluent in 20 different languages but you can know enough of 20 different languages to make use of that knowledge IF that knowledge is precisely matched to the context

for example i do not plan to use Spanish to discuss philosophy - only to speak to low IQ subhumans such as landscapers

on other hand i will most certainly NOT use German to discuss landscaping

get it ?