Right now Duolingo says I am 51% fluent, but there is no way that is accurate.
When reading I might be about 40% fluent. When writing or speaking I probably could say 40% of what I want to say although not with perfect grammar. When listening I could probably only catch 5% if the Spanish speaker is speaking at normal speed; maybe 20% if they speak slowly.
The problem is that I know basic sentence structure but don't have a huge vocabulary, so having a conversation with someone who doesn't know what my vocabulary is would be difficult. Also, how often do I need to say "The dog is brown. The cat is yellow." and things of that nature? I could probably have a decent conversation with another Duolingo learner.
The closest I have come to an actual conversation is that I said a monologue (basically) to a Spanish speaker and asked him to repeat back in English what I had said. He understood everything I said. I am hoping to have some actual conversations with him.
When I hear a native Spanish speaker, I have a hard time hearing the letters. For instance, I hear a "d" when the word actually has an "r".