If it doesn't work, exterminate!

There are a zillion ways to learn a language. You owe none of them any loyalty.

So let's say that you are trying one way, and that for whatever reason it doesn't work out.

I say, drop it!

Forget it.

Stop doing it.

Maybe try to figure out why it doesn't work for you, and use that as a clue to pick something else to try.

Really, why would you continue beating your head against a brick wall if there are so many other options?