I became fluent by practicing the language. Reading is not enough. Writing is not enough. Memorizing is not enough. I struggled to learn English until the day I started speaking it to get my thoughts across. I had gotten to the point of understanding most of the everyday conversations but it wasn't until I started speaking it that my fluency skyrocketed. I was easily speaking it within 6 months and was fluent within…
Like any language, you need to immerse yourself in it.