English: Learn Vocabulary or Phrases?

I want to improve my English. I can understand it quite well because I often watch series on Netflix in English. But I still have problems speaking on my own.

I just don't know what makes more sense. Learn vocabulary or phrases (like the one in the picture)?

What do you all mean?

Basically more that if you want to learn to speak better.

But both are important

Both are useful.

No. 4 is wrong, by the way.

No. 2 only applies to a sub-area.

And why is 4 wrong?

Sorry, I read it wrong!