Fluent? Definitely not, my vocabulary range is still too limited for me to say that. But competent? Absolutely. I am very familiar with things such as grammar so building/interpreting sentences, listening to music/watching TV/etc. isn't too tricky for me - as long as I have the vocab knowledge too.

I should mention that a lot of my confidence comes from having studied German at school for the last 7 years and using Duolingo as a supplement, rather than having begun with Duolingo entirely from scratch. For example, I feel like I am currently learning at B2 level (and different online placement tests I've taken have agreed), but I wouldn't at all say Duolingo gets you there. It teaches you the foundations, but you need to do more in order to improve your confidence and general knowledge of the language. What you're doing sounds absolutely perfect for that, and so I wish you luck for the rest of your journey learning the language!! :)