Bertrand Russell argued against the use of learning Greek and Latin in the early 1930s -- for the reason that previously, the main source of education and culture and just plain 'new ideas' for people around the time of the Enlightenment was the written records of the Greeks and Romans.
Nowadays the bulk of new ideas are in living foreign languages like French, Italian, Russian, etc. I know that, for example, Spain is a large hub of the Free Software movement. Sweden has a big export on crime drama, France on romance movies. There are thousands of Russian academic papers with ideas that are still unknown in the west, because of the cold war.
You probably would have better enjoyed the language if it gave you access to things you found interesting, or if the culture contained something useful or interesting to you.
Or to see it differently, of course "It was a huge waste of time", you chose a language that has no cultural benefit to you, and was forced to learn it. And then you seem surprised that it didn't pay off!