Duolingo or Memrise?
I have an profile for Memrise and Duolingo . I am amzing at memrise but duolingo I am not so good at but I want more words
Why not both? I use both: Duolingo to understand the structures, and Memrise to learn words.
A lot of Duolingo courses have corresponding courses on Memrise. You might find it helpful to study the words of a section first on Memrise, and then study that section here on Duolingo, where you learn how to use them.
They both fill different spots in the language learning hobby, they compliment each other quite well. I use both.