I spent a while using Busuu instead, which presents something more like a curriculum and lets you formulate your own answers to questions which are then reviewed by native speakers (in return for you reviewing the submissions of others). I found that incredibly effective because I wasn't stuck with putting strange sentences in the right order, I could get creative about how I described a red flag or a holiday I went on. More often than not I'd plug words and sentences into Google Translate, check dictionaries when I wasn't confident about a certain suggestion, and generally refactor the sentences until my gut said I had something that flowed reasonably well. Very intense and deliberate but it didn't take long to start posting to Facebook in Spanish. The only problem was that my writing was miles ahead of my speaking.